A、He didn’t buy anything. B、He got some medicine for his foot. C、He was sick and couldn’t go shopping. D、He bought everything ex

W: I hear your son has started a part-time job at the gas station?
M: Yes. He works from 4 to 9 on Fridays and 1 to 10 on Saturdays and Sundays.
Q: How many hours does the man’s son work every week?

W: Did you go shopping this afternoon?
M: Yes, but all I got was a sore foot.
Q: What can we infer from the conversation?