Because of rocks that protrude into the river at Lepenski Vir,

In order for E to be correct, we need something that is "as opposed to" either "whirling water that makes seeing fish easier" or simply "easier."

"As opposed to" does not mean "unlike." It means something along the lines of "rather than" or "not."

It does not make sense to say that the rocks are causing whirling water rather than the rushing waters of the river where it goes through the gorge. Clearly, the point to be made is not that rocks in one area are not causing the rushing waters of another area.

The following would make sense:

The whirling water makes seeing fish easier, rather than harder.

The whirling water makes seeing fish easier, not harder.

The whirling water makes seeing fish easier, as opposed to harder.

The rocks cause whirling water, rather than rushing water.

The rocks cause whirling water, not rushing water.

The rocks cause whirling water, as opposed to rushing water.
_________________

Why not e ? I assumed that answer was A but what is wrong in e ? Opposed to?

Posted from my mobile device

Hi, is the "whirling water to make seeing fish easier" is "because of rocks"? I mean: does "because of rocks" modifies "whirling water to make seeing fish easier"? Thanks_
N.B. As far I know, "because of" modifies "whole the clause", isn't it?
_________________

A phase beginning with "because of" is adverbial, meaning that the phrase serves as an adverb. So, the phrase must modify a verb.

In this case, the adverbial prepositional phrase "Because of rocks that protrude into the river at Lepenski Vir" modifies the verb "is", and explains why the whirling water is.
_________________

That means: Because of rocks "there is whirling water", right?
Thanks again__
_________________

One more question:
"rushing waters" indicates something 'plural'. So, my question is: is it possible to count 'rushing waters'?
N.B. As far I know, if something is plural, then it is definitely 'countable'
Also, what is the antecedent of "it" in choice A?
Thanks__
_________________

Yes.


Regarding "waters," it does seem plural, so I guess the waters must be countable, but I doubt that anyone would used the word "waters" in a way in which it has to be countable. I may edit the question and use "water" instead.

Regarding "it" in choice A, the antecedent is "river."
_________________

https://www.bbc.co.uk/worldservice/learn ... sh/071210/
https://www.quora.com/Is-there-a-differ ... -vs-waters
Hi,
According to the above link the word "waters" perfectly makes sense, I guess.
Could you take a look of these links before editing the topic, please?
Thanks__
_________________

C and D are much to convoluted to be correct. E is wrong because it replaces ‘unlike’ with ‘opposed to’, the two do not mean the same thing. B is wrong because ‘there is whirling water to make seeing fish easier’, implies conscious intent. A is he right answer.

Nice work. You caught some key issues and arrived at the correct answer.

At the same time, probably it would be safer to more clearly define why (C) and (D) are not correct.

For instance, rather than merely say that (C) is too convoluted to be correct, you could use the fact that (C) has no main verb as a clear reason to eliminate (C) and, thus, ensure that you have not fallen for cleverly written trick answers.
_________________

Is it correct to say "Because of rocks" or "Because rocks"? I think that the structure of the whole sentence is awkward.

Is the usage of unlike correct? The correct idiom is "Unlike A, B...", but in the given sentence the nouns that are compared - whirling water and the rushing waters - are nowhere closer to each other. Don't you think the comparison is wrong?

The comparison involves two things that have a certain difference. One has an attribute that the other does not have.

Since it's quite logical to say, "The whirling water does X, unlike the rushing waters," the comparison is fine.

If this is hard for you to see, consider the following:

My father, unlike the car, rolled down the hill without getting hurt.

While "my father" must be quite different from "the car," in this instance, comparing the two makes sense.
_________________

Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________