咨询方案中需要明确的咨询师的义务是（）。

A. they devote much of their time and attention to them.
B. they want to stay at home.
C. they were born with this ability.
D. they learned to do it at school.

A. He studied much harder.
B. He often took her for a ride.
C. He always endured her insults.
D. He often bought her presents and meals.

A. different
B. proud
C. uncomfortable
D. unconscious