Which of the following is true about the expiration of an offer to purchase in Missouri?

This statement is incorrect because Missouri law does not automatically impose a 7-day period on offers that lack a specific acceptance timeframe. Instead, the offer remains open for a reasonable time, which may vary depending on the circumstances, and is not strictly defined as 7 days.

This choice is misleading. A buyer may withdraw an offer before it is accepted, and there are conditions under which earnest money can be refunded, depending on the terms of the contract and state laws. Forfeiture of earnest money is not an automatic consequence of withdrawing an offer.

This statement is false because even if an offer contains a time limit, the buyer retains the right to withdraw the offer before it is accepted. The time limit only dictates the period during which the offer remains valid for acceptance.