The correct option is A Leydig cell
Testosterone is secreted by by the Leydig cells in testes in men and by the ovaries in women. It is a principal androgen. LH stimulates the Ledig cells to secrete testosterone. It initiates the development of the male internal and external reproductive organs during foetal development and is essential for the production of sperm in adult life. So, the correct answer is 'Leydig cell'.