Final answer:
The examples of questions asked by salespeople as part of a trail close during a sales call are about addressing concerns, budget, and background/experience.
Step-by-step explanation:
The examples of questions asked by salespeople as part of a trail close during a sales call are A) "Do you have any concerns or objections that we need to address before moving forward with the purchase?", B) "What is your budget for this product or service?", and D) "Can you tell me a little more about your background and experience?"