Question

the male gland that adds fluid to the sperm to nourish and protect it.
adrenal gland
male gland
female gland
prostate gland

Explanation:

The prostate gland is a male reproductive gland that secretes a fluid which nourishes and protects sperm. The adrenal gland is involved in hormone production for stress response etc., "Male gland" is too vague, and "Female gland" is incorrect as it's a male - related function. So the correct answer is the Prostate gland.

Answer:

D. Prostate gland