Question
From the options given below, select the option which
states the correct combination of correct sentences. I. The researchers emphasized that every variable affecting behavioural outcomes must be examined carefully before any generalized conclusions are drawn. II. Hardly had the negotiations resumed when fresh disagreements regarding trade obligations began emerging between the participating nations. III. A significant number of financial institutions has started integrating artificial intelligence into fraud-detection mechanisms to improve operational efficiency. IV. The proposal submitted by the economic advisory panel, despite containing several innovative recommendations, fail to address the structural causes of rural unemployment adequately.Solution
Sentence I is correct.
 The subject “every variable” is singular, so the verb “must be examined” is correctly used. The sentence is grammatically sound. Sentence II is correct.
 The structure “Hardly had... when...” is correctly used. It follows the required inversion pattern after “Hardly.” Sentence III is incorrect.
 The subject is “A significant number of financial institutions” , which takes a plural verb .
 Correct usage: A significant number of financial institutions have started... Sentence IV is incorrect.
 The main subject is “The proposal” , which is singular. Therefore, the verb should be “fails” , not “fail.”
 Correct usage: The proposal..., fails to address... Hence, option (a).
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