【单选题】

When I was in my twenties, I drove for a taxi company inDayton, Ohio, making a small hourly wage. It was the summer of 1966.

One afternoon I was sitting at a downtown taxi stand, hoping to get an airport run. Instead, I got a call from the manager, who told me to go to a newsstand and buy a racing form. Then I was to stop and pick up a six-pack of beer, some goldfish food and a box of cigars. He directed me to deliver the goods to an address in a nearby neighborhooD、
I protested, not wanting to lay out money from my own cash supply, because I was afraid I might not be able to collect the money.
The manager told me this man was a regular customer. He assured me that there would be no problem with payment, and said I should get moving or bring the car back in. Since he put it that way, I got moving.
The building smelled of tobacco smoke. I knocked on the door and could hear something moving across the floor.
Finally the door opened, and there was a disabled man sitting on a small wood platform, looking up me.
The man was polite and very grateful for my services. When I set the racing form down on the coffee table, I noticed an open velvet case that looked like a jewelry box.As the man rolled over and reached for some money to pay me, I glanced inside. There was a medal: a Purple Heart from World War 2.
Guilt began to creep over me as he paid and gave me a generous tip. The man was a quiet sort of person, obviously not in need of companionship.
He had long ago yielded to his condition and to the sacrifice he had made. I made that run many more times in my taxi until I moved on to another job, but I never learned his name and we never became friends despite our regular contact.
Unfortunately for me, I would be more than twice the age I was back then before I learned that prejudging people makes you wrong about most things most of the time.
Finally the author went to the man because ______.
A、The manager would pay him
B、The man was a regular customer
C、The man was a soldier from World War 2
D、The manager would get his taxi back if he didn’t go