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Darden2010
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I like the parallelism in C.
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Darden2010
Geologists once thought that the molten rock known as lava was an underground remnant of Earth's earliest days, sporadically erupting through volcanoes, but they now know that it is continuously created by the heat of the radioactivity deep inside the planet.

A: was an underground remnant of Earth's earliest days, sporadically erupting

B: had been an underground remnant of Earth's earliest days and sporadically erupted

C: was an underground remnant of Earth's earliest days, which sporadically erupted

D: would be an underground remnant of Earth's earliest days that sporadically erupted

E: was an underground remnant of Earth's earliest days, having sporadically erupted


Def. A. no errors.

C, improper use of which.
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Looks like A to me. We are finally up to A and C right. C is wrong because which sporadically erupted modifies "earlies days". In A sporadically erupting is an adverbial modifier and does not need to be close to the thing it modifies.
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Darden2010
Correct answer is A

I liked C better also, why is C improper use of which? and how come 'sporadically erupting' is not modifying 'earliest days' (which is wrong) in A


I fail to understand how A is correct; isn't 'sporadically erupting' modifying 'earliest days'? Can someone explain??
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Darden2010
Correct answer is A

I liked C better also, why is C improper use of which? and how come 'sporadically erupting' is not modifying 'earliest days' (which is wrong) in A

I fail to understand how A is correct; isn't 'sporadically erupting' modifying 'earliest days'? Can someone explain??


Participle clause(sporadically erupting....) is modifying molten rock. It if were modiying earliest days, comma would not be needed.
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Looks like A to me. We are finally up to A and C right. C is wrong because which sporadically erupted modifies "earlies days". In A sporadically erupting is an adverbial modifier and does not need to be close to the thing it modifies.


I agree with your explanation. Please correct me if I am wrong here or if you think differently.

IMO sporadically erupting is not an adverbial modifier, it is a participle phrase (erupting...) and adverb(sporadically) modifies the adjective(erupting...)

I don't disagree with your answer, just want to clarify my understanding. Thanks.



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