You should have courage to ask an apology ______ him _____ your rudeness.

You should have courage to ask an apology __ him _ your rudeness.

To - of

To - for

From - about

None of these

The correct sentence is: "You should have courage to ask an apology to him for your rudeness."

"To" is used for the person you're apologizing to, and "for" is used to indicate the reason or cause of the apology.