Answer:
A. To inform
Explanation:
From the passage; The subject(the owner of the vehicle) was asking someone who specializes in the repairs of automobiles to let him know the extent of the damage to his vehicle; since the subject is not inclined in the field of automobiles, He is definitely seeking for better valid information that are backed with facts from an Auto-Mechanic.
Also, He is telling the Auto-Mechanic to inform him (i.e to let him know) when to come over and retrieve some of His items from the car after diagnosing the damages of the car and before they begin the repair.
If He is entertaining, definitely he wants to catch fun and be happy which is not applicable in this situation.
To inquire means investigating the truth of an hypothesis by asking questions.
To persuade is to make someone perform a particular task.