What does revocation of an offer entail?

Revocation of an offer specifically involves the withdrawal of that offer by the offeror before it has been accepted by the offeree. This process is crucial because it establishes that the offeror retains the right to retract the offer as long as the acceptance has not yet occurred. Once the offer is revoked, the offeree can no longer accept it, as the offer no longer exists. The communication of this revocation does not have to be formal; it can be done through various means such as verbal communication, written notice, or even through conduct that indicates the offeror's intention to withdraw the offer.

In contrast, the other options misunderstand the concept of revocation. It is not something that is deemed effective as soon as the offer is made—rather, it becomes effective only when the revocation is communicated to the offeree. Revocation is not related to what occurs after acceptance; once an offer has been accepted, it can no longer be revoked as a valid contract has been formed. Additionally, revocation does not pertain to the acceptance of the offer by the offeree; it is exclusively the action of the offeror withdrawing the offer before it has been accepted.