Select the most appropriate option for the given blank.
Your brother _____________ an apology to me.

The correct answer is (a) owes.
Explanation: The verb "owes" is used when one person is expected to give something to another, such as an apology. In this context, it means the brother is required to apologize.
Meanings of all options:
· Owes: To be under obligation to give something, typically money or an apology.
· Drops: To fall or let something fall.
· Abates: To reduce in degree or intensity.
· Owns: To possess something.
Correct sentence: "Your brother owes an apology to me."