Final answer:
An offeror may cancel an offer at any time prior to its acceptance unless certain conditions apply.
Step-by-step explanation:
In general, an offeror may cancel an offer at any time prior to its acceptance unless the offer has been communicated to the offeree, is a unilateral contract, is irrevocable, or involves a counteroffer.
For example, if an offeror sends an offer to the offeree and later decides to cancel it before the offeree receives it, the offer can be cancelled as it has not been communicated. However, once the offer is communicated to the offeree, it cannot be cancelled unless it falls under one of the exceptions mentioned above.