Final answer:
When communication occurs through surface mail, the question of delivery and acceptance arises, impacting the timing and formation of a contract according to contract law.
Step-by-step explanation:
When the communication takes time, for example when sent through the surface mail, the question of delivery and acceptance arises. This is because in contract law, the communication of offers and acceptances can be critically impacted by delays in the postal system. Usually, the acceptance is effective when dispatched, as per the postal rule, unless the offer specifically states otherwise. This rule helps to determine the exact moment a contract is formed when there are delays in communication, which is crucial for both parties in understanding their legal obligations and rights. However, this communication method can also lead to disputes if either the offer has been revoked before acceptance or if the acceptance is delayed or lost in the mail, hence raising questions of contractual certainty.