(A) In human males, the testes are situated outside the abdominal cavity within a pouch.

• This statement is correct. The testes are located outside the abdominal cavity within the scrotum, a pouch of skin that hangs behind and below the penis. This positioning outside the body helps regulate the temperature for optimal sperm production.

(B) Primary spermatocytes undergo mitosis to form secondary spermatocytes.

• This statement is incorrect. Spermatogenesis involves a process of two successive cell divisions called meiosis, not mitosis. Primary spermatocytes undergo meiosis I to produce secondary spermatocytes.

(C) Sertoli cells provide nutrition to the germ cells.

• This statement is accurate. Sertoli cells, which are supporting cells in the seminiferous tubules of the testes, play a crucial role in nourishing and supporting the developing germ cells (sperm cells).

(D) Seminal plasma is rich in glucose, calcium, and certain enzymes.

• This statement is generally true. Seminal plasma is the fluid component of semen secreted by various accessory glands. It contains nutrients like glucose to provide energy for sperm, calcium ions that aid in sperm motility, and enzymes that assist in different physiological processes for sperm function.