Multiple Choice Question: $($From Dynamic Business Law by Kubasek, Mcgrawhill Connect ABA $-$ Revocation and Termination of Offers$)$ Was Corinne free to revoke her original offer at that point?

A: Yes, even though Corinne and Brian had an option contract, Corinne could revoke her offer if she gave the $$500$ back.

B: Yes, Corinne was the "master of the offer" and she can revoke her offer at any time.

C: No$,$ Corinne couldn't revoke her original offer because Brian's counteroffer $($asking for $10$ days to consider$)$ terminated that offer.

D: No$,$ Corinne and Brian had an option contract and Corinne wasn't allowed to revoke her original offer during those $10$ days.