Final answer:
It is true that if the time for an offer to expire is not stated, it expires in a reasonable time given the context of the offer. The concept of a reasonable period is used in contract law to prevent offers from becoming time bombs and to maintain fairness in the contracting process.
Step-by-step explanation:
True, if a time for the offer to expire is not stated, it will expire in a reasonable time under the circumstances. This principle is part of contract law, which generally holds that offers must be clear on the essential terms, including how long an offeree has to decide on the offer. However, when no specific time frame is provided, courts will consider what they deem as a reasonable period based on the context of the offer, the nature of the goods or services, market conditions, and communications between the parties. This avoids time-sensitive offers from becoming time bombs that could unduly pressure or deceive an offeree.