The doctor advised us to give him wholesome nutrition.

Answer: Option A

Wholesome : conducive to or suggestive of good health and physical well-being.
Sickly : often ill; in poor health.
Stupendous : extremely impressive.
Depressing : causing or resulting in a feeling of miserable dejection.
Fragmentary : consisting of small disconnected or incomplete parts.

Antonym of Wholesome is Sickly