Directions: The given sentence has been broken up into four different parts. The error, if any, will be in any one part of the sentence. Select the option which contains the part of the sentence which has an error (spelling, grammatical or contextual). If there is no error, choose option E.
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B
There is an error of Subject-Verb agreement in fragment B. The verb ‘describe’ must be replaced by ‘describes’ to make it a grammatically correct sentence.

The correct sentence would therefore be, “Study of small island bird and lizard populations describes a fast burst of evolution, followed by a slowdown.”

Option B is hence the correct answer.
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C
The fragment C is erroneous as the adjective ‘capable’ should be followed by the preposition ‘of’ instead of ‘for’.

The correct sentence would therefore be, “Researchers have unveiled 83 rare gene variants which exerts a strong influence on human height, with some capable of adding or subtracting more than two centimeters.”

Option C is hence the correct answer.
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C
The error is in fragment C of the sentence. Here, the indefinite article ‘an’ must be used instead of ‘a’ as the first letter of the word ‘unusual’ is starting with a vowel sound.

The correct sentence would therefore be, “With 3,30,000 inhabitants surrounded by volcanoes, glaciers and geysers, Iceland is a unusual destination for refugees fleeing war in Syria.”

Option C is hence the correct answer.
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E
The sentence is absolutely correct and thus has no error in it.

Option E is hence the correct answer. 
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D
The error is in fragment D of the sentence. The verb ‘reconcile’ which refers to ‘to make or show to be compatible’ should be followed by the preposition ‘with’ instead of ‘for’.

Reconcile (Verb): 

To make or show to be compatible

Ex. The agreement had to be reconciled with the city's new international relations policy.

The correct sentence would therefore be, “The budget seeks to reconcile the consequences of international headwinds with domestic economic compulsions.”

Option D is hence the correct answer.