What is a antecedent of the interrogative pronoun what?

The antecedent of an interrogative pronoun, like "what", is the noun or pronoun that the interrogative pronoun refers to. Since interrogative pronouns are used in questions, they are asking for information about the antecedent.

Here's the catch: In most cases, the antecedent of "what" is implied, not explicitly stated.

Here are some examples:

* "What did you eat for breakfast?" Here, the antecedent of "what" is "the thing you ate for breakfast".

* "What is your favorite color?" Here, the antecedent of "what" is "your favorite color".

* "What time is it?" Here, the antecedent of "what" is "the current time".

Essentially, "what" acts as a placeholder for the unknown information being sought.