He listened to her mellifluous music under the genial influence of wine.

The correct answer is D. sympathetic.

The word “genial” means “friendly, cheerful, and kind.” It is often used to describe someone who is pleasant and easy to be around. In this case, the speaker is listening to the woman’s music while under the influence of wine, which is likely making him feel relaxed and happy. This makes it more likely that he is feeling sympathetic towards the woman and her music.

The other options are not as likely to be true in this situation. The speaker is not likely to be feeling heavy, stressed, or drowsy while listening to the woman’s music.