Is it really that important to _ my availability for the wedding?

Explanation

- Correct Answer: a. Confirm - Explanation: The sentence is questioning the significance of verifying availability, and "confirm" means to verify or affirm. - Why other options are not correct: - b. Dismiss: Dismissing availability doesn't make sense in the context of the sentence. - c. Deny: Denying availability doesn't fit the context of questioning importance. - d. Comply: Complying with availability is not relevant to the sentence's meaning.