Testosterone is secreted by-

Ans. is 'a' i.e., Leydig cells * Leydig cells have receptors for LH and secrete androgens, i.e. Testosterone, dihydrotestosterone (DHT), androstenedione, and dehydroepiandrosterone (DHEA).* Sertoli cells have receptors for FSH and secrete ABP, inhibin and MIS. sertoli cells also have receptor for testosterone.