When must copies of the agreement of purchase and sale be delivered after acceptance?

In real estate transactions, it is crucial to promptly provide copies of the agreement of purchase and sale to both the buyer and the seller. This helps ensure transparency and clarity for all parties involved in the transaction. By delivering the copies as soon as possible, it allows both the buyer and the seller to review the terms of the agreement in a timely manner, which can help prevent misunderstandings or disputes down the line. Therefore, option D is the correct choice as it highlights the importance of timely delivery of the agreement to the involved parties.