Answer:
The correct answer is letter "D": have identified buyers' problems and needs.
Explanation:
Sales dialogues are useful for clerks so they can identify the needs, problems, and demands of purchasers. Salespeople must make sure to obtain as much information as possible so they can match what the consumer wants with a product the company offers.
Thus, a tailored solution for any given client must be proposed only when salespeople have identified customer's problems and needs.