The correct option is C Interstitial cells
The male gonad testis in males is composed of seminiferous tubules and stromal or interstitial tissue. The Leydig cells or interstitial cells, which are present in the intertubular spaces produce a group of hormones called androgens mainly testosterone. Seminiferous tubules rae the sites for sperm production, sertoli cells are nurese cells that provide norishment to the developing sperms.