Concept:A question tag must agree with the verb and subject of the main statement, and a negative statement takes a positive tag.
Explanation:The sentence begins with "Nobody", which is a negative indefinite pronoun.
Since the main statement is negative, the question tag must be positive.
The main verb is "will", so the tag should use "will" in the positive form.
Indefinite pronouns like nobody, somebody, everybody, and no one take "they" as the subject in a question tag.
Therefore, the correct tag is "will they?"
Options with "do" or "don't" are incorrect because the sentence uses "will", not a present tense verb.
"Won't they" is incorrect because it would make the tag negative for an already negative statement.
Answer:A. will they