When does an offer become a binding contract?
1) When the offeree accepts the exact terms and conditions of the offer and the acceptance is properly communicated back to the offeror.
2) When the offeree rejects the terms and conditions of the offer.
3) When the offeror withdraws the offer before the offeree can accept it.
4) When the offeree proposes new terms and conditions to the offeror.