Which of these sentences is in the subjunctive mood?

A. You seem to get sick very often.

B. Are you feeling any better today?

C. I heard you were out sick yesterday.

D. I wish you would take better care of yourself.

A. You seem to get sick very often

The sentence which is in the subjunctive mood is:

D. I wish you would take better care of yourself.

Explanation:

The subjunctive mood is the mood of the work which expresses unrealistic states. The condition expressed by the verb is very doubtful or nonfactual to believe in. The subjunctive mood is found in the verb which expresses a wish, a doubt, any demand, or regret. In the above sentence, the desire is expressed and hence, the sentence is in the subjunctive mood.