Step 1: Understanding the Concept:
This question asks for the antonym of the given verb.
Step 2: Key Formula or Approach:
Define the word "posit." It means to put forward as a fact or as a basis for argument; to postulate or assume. It is an act of affirmation or proposing something as true.
Step 3: Detailed Explanation:
- The opposite of proposing or affirming something as true is to state that it is not true.
- Option (C), "deny," means to state that something is not true. This is a direct antonym.
- (A) deceive is to mislead.
- (B) begrudge is to envy or resent.
- (D) consent is to agree. While related, "deny" is a more direct opposite to "posit" (propose as true vs. state as untrue).
- (E) reinforce is to strengthen, which is a synonym, not an antonym.
Step 4: Final Answer:
The opposite of positing (affirming) a claim is to deny it.