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The question is from CAT Sentence Correction. CAT exam has not been testing Sentence Correction for the past 5 years. It is still important to better understand English Grammar. Solve CAT Questions from Sentence Correction to get more practice and 2IIMs CAT questions bank provides you with CAT questions from Sentence Correction that can help you gear for CAT Exam.

Question 13: One of the problems that occur as a result of coal mining is the increasing incidences of lung cancer.

  1. that occurs as a result of coal mining are the increasing incidences
  2. that occurs as a result of coal mining is the increasing incidence
  3. that occur as a result of coal mining are the increasing incidences
  4. that occur as a result of coal mining is the increasing incidence

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Explanatory Answer

Method of solving this CAT Question from Sentence Correction:

There are two verbs in the given sentence- ‘occur’ and ‘are’. Let us look at each of these in turn to identify the subject associated with the verb.

‘One of the problems’ is singular, as it refers to one of many problems. So, the right verb to be used with this subject is ‘is’, not ‘are’. The correct usage is “One of the problems……….?

Now, consider the verb ‘occur’. The subject that ‘occur’ is associated with is ‘problems’, not ‘one of the problems’. So, the subordinate clause - the clause beginning with ‘that’- takes a plural verb. Why is this so? The verb must agree with the subject of the clause, which is the relative pronoun ‘that’. The pronoun has the same number as its antecedent, which is ‘problems’. Since ‘problems’ is plural, ‘that’ is also plural, and so the verb associated with it must agree with ‘problems’. Problems occur. So, the correct usage is “one of the problems that occur?.

Another way to test this is to reword the sentence: Of the problems that occur, one is…

Also note that ‘incidence’ is the frequency of occurrence of something. As the sentence refers to the frequency of occurrence of a single metric- lung cancer- ‘incidence’ has to be used in singular.

The question is " Choose the grammatically correct option "

Hence, the answer is option D

Choice D is the correct answer.


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