Correct option is A
Option (a) is the correct meaning of the given idiom.
· The most appropriate meaning of the idiom "make amends" in this context is (a) "to correct a mistake."
· In the sentence, it suggests that the person should take advantage of the opportunity to correct or rectify their earlier behavior of being curt or impolite.
· Making amends means trying to make things right or compensate for a previous wrong or mistake.