Antonym of ROBUST

Answer: Option B

Robust : strong and healthy; vigorous.
Thin : having little, or too little, flesh or fat on the body.
Emaciated : abnormally thin or weak, especially because of illness or a lack of food.
Light : the natural agent that stimulates sight and makes things visible.
Strong : having the power to move heavy weights or perform other physically demanding tasks.

Antonym of Robust is Emaciated