When and where is an acceptance effective and accomplished?

1. In the case of post-box rule:
2. In the case of unilateral contract:
3. In the case of e-mail or fax:

Andrew offered to buy property for $300,000: Offer to remain open until 6:00 pm Thursday, January 22, 1995. Which one of the following situations will not cause the offer to end?

1. Insanity of the offeree before the offer is accepted.
2. Andrew sells the property to another party before the expiration of the period stipulated and before hearing from the offeree.
3. A counteroffer from the offeree.
4. Death of offeror
5. The offeree has not accepted, and the stipulated time period has expired.

If you pay $100 for a 90-day option on property offered at $200,000, which of the following is true?

1. You have brought 90-day period of time within which you may or may not accept the offer of the land.
2. With the signing of the option agreement, you have entered into two contracts a contract for time and another for land.
3. You have agreed that you will accept the offer of land within the 90-day period.
4. If you do not exercise the option, you can get your $100 back.
5. The seller of the land can revoke the offer of the land any time before acceptance.

When the courts find that undue influence is present the resulting contract is:

1. Voidable
2. Void
3. Unenforceable
4. Binding
5. Illegal