Answer: A, it seems to be advice with a good explanation to help your client. Your talking into account their physical and mental well-being.
Explanation: we can easily eliminate the rest. B, this makes the client feel bad by the judging remark and doesn't validate their emotions.
C, this isn't very helpful but it's honest. A still has a better outcome when said.
D, the last bit doesn't make sense and will confuse the client.