Which One of the Following Will Not End an Offer

Multiple Choice

Which one of the following will not end an offer?

A) The offer is said to be open for 3 weeks and the 3 weeks expire.
B) The offeror dies.
C) The offeree makes a counter offer.
D) The offeror communicates a revocation of the offer.
E) The offeror sells the goods being offered to someone else.