A、Teacher and student. B、Doctor and patient. C、Lawyer and client. D、Neighbours. D

M: It’s said you and Tina are enthusiastic about yoga class, aren’t you?
W: Yes. Tina and I used to take lessons once a week, but now I go twice a week and Tina goes every other day after class.
Q: How many times docs Tina take yoga lessons one week now?

M: Hello, Judy. Your yard is always so beautiful. Do you hire a gardener?
W: Thanks! Actually I enjoy taking care of the plants by myself. But sometimes I may feel a little tired when I do the weeding or cut the grass.
Q: What’s the probable relationship between the two speakers?