Final answer:
True, a reward advertisement for lost property constitutes an offer for a unilateral contract, which is accepted through the completion of the requested act.
Step-by-step explanation:
True. An advertisement offering a reward for the return of lost property is usually treated as an offer for a unilateral contract. In the context of contract law, a unilateral contract is a promise made by one party in exchange for the performance of a specified act by another party. In the case of a reward for the return of lost property, the advertiser promises to pay the reward to the individual who successfully returns the lost item, thus fulfilling the terms of the offer.
In such contracts, no reciprocal promise is expected or required from the party who is performing the act. The contract becomes binding when the act (i.e., the return of the lost property) is completed. This is distinct from a bilateral contract, where both parties exchange mutual promises to perform certain acts.