Answer: The correct answer for the blank is - Answer: The correct answer for the blank is -
testosterone.
Step-by-step explanation:
Testosterone is an androgen that is produced by the gonads (particularly by the Leydig cells that are in testes of males and by the ovaries of females) as well as by an enocrine gland called adrenal gland. It is a hormone that stimulates the development of male characteristics during puberty such as increase of height, growth of body hairs and pubic, penis enlargement, change in the voice etc.
Thus, testosterone is the right answer.