The correct option is D Both A and B
In males, a pair of the testis is present in the scrotal sac (outside the abdomen). Testis performs dual functions as a primary sex organ as well as an endocrine gland(secrete hormones).
The Leydig cells also called as interstitial cells are present in the intertubular spaces in the testes. are found adjacent to the seminiferous tubules in the testicle. Leydig cells or interstitial cells produce testosterone or androgens in the presence of luteinizing hormone (LH).
Androgens or testosterone regulate the development, maturation, and functions of the male accessory sex organs like epididymis, vas deferens, seminal vesicles, prostate gland etc. It also plays a major role in the development of secondary sexual characters in males.
So, the correct option is 'Both A and B'.