Which of the Following Refers to the Right of an Offeror

Multiple Choice

Which of the following refers to the right of an offeror to revoke his offer,even if the offeror says he will hold the offer open for a stated period of time?

A) The offeror is the "originator of his offer."
B) The offeror is the "master of his offer."
C) The offeror is the "proponent of his offer."
D) The offeror is the "adjudicator of his offer."
E) The offeror is the "arbiter of his offer."