Which of the Following Options Is the Best COUNTEREXAMPLE to the General

Which of the following options is the best COUNTEREXAMPLE to the general claim that:
You should always keep your promises.

A) Promises are made to be broken.
B) Suppose you break the promises you wish you hadn't made. In that case, your friends won't trust you any more and you will lose them. Breaking your promises isn't worth it.
C) You shouldn't keep promises you regret having made. For example, suppose you promise to visit your friend in the hospital, but then decide you'd rather meet up with friends who aren't in the hospital. If you'd regret visiting the hospital friend, as you had promised to do, then you shouldn't keep that promise.
D) You shouldn't keep your promises in some situations in which you learn new information that changes what you would have promised. For example, suppose you promised to visit your friend, but then learn you have been exposed to ebola and might be contagious. You shouldn't keep your promise to visit your friend in that case.