Final answer:
The listing broker must disclose both the termite damage to the subfloor and the violation of city setback requirements in the swimming pool to the public and prospective buyers.
Step-by-step explanation:
The listing broker must disclose both the termite damage to the subfloor in the living room and the violation of city setback requirements in the swimming pool to the public and any prospective buyer. Therefore, option (A) is the correct answer. The disclosure of these issues is essential for transparency and ensuring that the buyer is fully informed before making a purchase.