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DarkHorse2019
Because of the fear that the company's latest efforts to contain the spill, which had started three months ago when a leased rig sank, might falter, BP shares fell in London and New York.

(A) had started three months ago when a leased rig sank, might falter, BP shares fell
(B) had started three months ago when a leased rig sank, might falter, BP shares had fallen
(C) started three months ago when a leased rig sank, might falter, BP shares fell
(D) started three months ago with the sinking of a leased rig, might falter, BP shares fell
(E) started three months ago with the sinking of a leased rig, might falter, BP shares had fallen


Can anyone plz explain why option "C" is wrong?
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Confused between C and D. How come C is the answer? In terms of meaning how both options are different?
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I see a few questions about this one, and it is tricky. At the heart of the confusion lies an idiom, but we will address that in a moment. First, the unadulterated sentence:

DarkHorse2019
Because of the fear that the company's latest efforts to contain the spill, which had started three months ago when a leased rig sank, might falter, BP shares fell in London and New York.

Did you catch any mistakes?

DarkHorse2019
(A) had started three months ago when a leased rig sank, might falter, BP shares fell
The past perfect is incorrect here. The which clause marker could be replaced by its referent, the spill, and we should get a clear timeline of events. But the spill had started... when a rig sank skews the order of events, making it sound as if the sinking came after the spill had already begun. I will save when for my analysis of (C) below. For now, keep moving.

DarkHorse2019
(B) had started three months ago when a leased rig sank, might falter, BP shares had fallen
The same two errors persist, but now we have a third: the past perfect had fallen does not agree with the potential outcome suggested by the earlier might falter. One, two, three strikes you're out.

DarkHorse2019
(C) started three months ago when a leased rig sank, might falter, BP shares fell
It might sound okay, but started... when is the wrong construct. The idiom should be started... with instead. That is, the spill started with some event, rather than saying that the spill started when some event verb-ed.

DarkHorse2019
(D) started three months ago with the sinking of a leased rig, might falter, BP shares fell
This choice opts for the correct idiom in started... with, and the verb tense at the tail-end of the underlined portion agrees with the anticipated outcome: people were fearing that BP's efforts to contain an oil spill (presumably) might falter, so the company's stock prices fell in response.

DarkHorse2019
(E) started three months ago with the sinking of a leased rig, might falter, BP shares had fallen
Almost, but this is clearly a worse version of (D), provided you had caught the idiom started... with in the first place. Stock shares fell in response to a certain fear, rather than having fallen prior to that fear. The cause-and-effect arrow needs to be clear.

I hope that helps clear any doubts about (D). It is not that start... when is incorrect 100 percent of the time--e.g, His political career started when Nixon took office.--it is just that, as explained above, in the context of this sentence, we are trying to say that an event started with a catastrophe, rather than when a catastrophe occurred.

Good luck with your studies.

- Andrew

While I have no knowledge about the idiom and cannot amount, I have a doubt regarding the timeline it could be very well the case that 'had started' is used to signify that shares fell after that.

I think the reason had started should not come is because it clearly says three months go which sort of establishes the timeline. Correct me if I am wrong!

Thanks!

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I was not convinced here. But I can see that D) might be a better option than C). However, this is really subtle.

Lets compare the following cases:

1. It all started when he died.
2. It all started with his death.

1. Implies anything could have started, like WW3 or my depression.
2. Makes it certain that his death is actually the trigger for something.

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DarkHorse2019
Because of the fear that the company's latest efforts to contain the spill, which had started three months ago when a leased rig sank, might falter, BP shares fell in London and New York.

(A) had started three months ago when a leased rig sank, might falter, BP shares fell
(B) had started three months ago when a leased rig sank, might falter, BP shares had fallen
(C) started three months ago when a leased rig sank, might falter, BP shares fell
(D) started three months ago with the sinking of a leased rig, might falter, BP shares fell
(E) started three months ago with the sinking of a leased rig, might falter, BP shares had fallen

Clearly the debate seems to be between C and D.
I also marked C the answer, initially, but realized my error. It was a meaning issue.

The sentence originally says, "Company's latest effort to contain the spills might falter". It clearly means that the spills are still there. How can spills be still there if the rig has already sunk three months ago. Obviously, it can only be there if the rig is still sinking and repairs or replacements have not been done.

Hence when we see at C and D as follows -
(C) started three months ago when a leased rig sank, might falter, BP shares fell
(D) started three months ago with the sinking of a leased rig, might falter, BP shares fell


We can clearly see as per the above logic that C is wrong.

According to me, this can be the best approach if somebody is not aware of the idiom in this context.

Hi adstudy

I find your explanation faulty, as we don't know what exactly spill is? For example, if a ship with an oil container sank, and the container is leaking, then it doesn't matter if the ship (with an oil container) sank or not, as oil is lighter than water, oil can come to the surface of water.

Also even if we consider any other substance, it can pollute water. Thus considering that if the rig has sunk, it doesn't mean that spills are not there.
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IMO, this is a low quality question.

Both C and D are equally correct in terms of grammar, meaning and idiom use.

X started with the Y (Y is a verb), is a valid construct.
X started when Y (Y is a noun), is also a valid construct.

With regard to this question, the meaning is clear, and identical, with either version.
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