In the sentence provided, 'It is I who is responsible for the delay,' there is an error related to subject-verb agreement.
When you use constructions like 'It is I who...' or 'It is he/she who...', the verb following the relative pronoun 'who' should agree with the antecedent of 'who.' In this sentence, the antecedent of 'who' is 'I.'
Let's break it down:
'I' is the subject pronoun in the nominative case.
The verb should agree with 'I,' which is a first-person singular pronoun.
The correct verb form for the first-person singular is 'am.'
Therefore, the correct sentence should be: 'It is I who am responsible for the delay.'
The error is in part (b), so the answer is:
(B)
The sentence contains a subject-verb agreement error in part (b) because 'who' must agree with the first-person pronoun 'I.' The correct form is 'It is I who am responsible for the delay.' Thus, the answer is (B).
;