Spot an error in the given sentence. (A)Neither of the/(B) patients are…

Concept: 'Neither' (like 'either') is a singular indefinite pronoun. When it functions as the subject of a sentence — even when followed by an 'of' phrase containing a plural noun — the verb must agree with 'neither' in the singular, not with the plural noun inside that 'of' phrase.

Application: In this sentence the subject is 'Neither of the patients' — the head of the subject is the pronoun 'Neither', with 'of the patients' acting only as a modifying phrase. Part (B) pairs this singular subject with the plural verb 'are feeling', which is a subject-verb agreement error; the correct form is 'is feeling'.

• (A) 'Neither of the' is correct on its own — it properly opens the subject of the sentence.

• (C) 'better because of heavy rains' is a well-formed adverbial phrase describing manner and cause; it contains no error.

• (D) This choice would mean the whole sentence is correct, but the subject-verb agreement fault described above means an error does exist.

Cross-check: replacing 'are feeling' with 'is feeling' in part (B) makes the sentence fully grammatical, confirming part (B) is the erroneous segment.