A、Friends. B、Couples. C、Father and daughter. D、Boss and employee. A根据对话内容判断，两人关系应为朋友。故选A。

M: So, Shona, (8)we both say that we love running. Why do you like to run?
W: Well, actually, you know, I could only run for like a minute or so years ago, but I just noticed such and affect on my mood and it just completely lifted my mood, and I was like really, really happy afterwards, a runner’s high, and like you know, the more I got used to it and the more I could run, the happier I got, and it’ s just like, it was basically down to that, it was like an emotional thing, rather than anything else.
M: Wow, that’s interesting because you know I’ m exactly the same way. Like, people think that I run because it’ s a chore and I want to stay fit, or I want to lose weight, (9)but actually it’ s all mental. I look forward to running every day.
W: Yeah.
M: I never feel like, "Oh, I have to go running."
W: Cool. It’s like an addiction kind of in a way.
M: Yeah, I think so. It does something for your moods, but when you run, now do you like to run with people or do you like to run alone?
W: No, (10)I like to run alone, completely. I mean, I’ve tried it like friends and stuff but they’re either too quick for me or too slow for me. I like to go at my own pace. So, it’s the same with anything, you know. I much prefer to do things alone, I don’ t know if that’ s a good or bad thing. What about yourself? Do you prefer to go alone or...?
M: No, (10) I think exactly what you said. I have a hard time running with other people. They either are faster than you and you have a hard time keeping up, or they’ re slower than you and you can’t really run.
8. What do the two speakers talk about?
9. Why does the man like running?
10. Who likes running alone?
11. What’s the relationship between the two speakers?