Step 1: Understanding the Concept:
This question tests subject-verb agreement with indefinite pronouns like "neither," "either," "each," and "one." Step 2: Key Formula or Approach:
The pronoun "neither" is grammatically singular and requires a singular verb. Even when followed by a prepositional phrase with a plural object (like "of the two men"), the subject itself ("Neither") remains singular. Step 3: Detailed Explanation:
1. Identify the Subject: The subject of the sentence is "Neither." The phrase "of the two men" is a prepositional phrase that modifies the subject but does not change its number.
2. Apply the Agreement Rule: Since "Neither" is singular, it must be paired with a singular verb.
3. Analyze the Verb Options:
- (A) have: This is a plural verb. Incorrect.
- (B) has: This is a singular verb. Correct. The full verb phrase is "has done" (present perfect tense).
- (C) may: This is a modal verb. While grammatically possible ("may have done"), "has" is the direct verb required by the present perfect structure suggested by "done".
- (D) should: This is a modal verb. Same as above, it would require "have" ("should have done").
The choice between "has" and "have" is a direct test of singular/plural agreement. Step 4: Final Answer:
The singular subject "Neither" requires the singular verb "has". The correct option is (B).