Answer: e. all of the above
Step-by-step explanation:
The estrogen is a hormone which is responsible for the development of the secondary sexual characteristics in females but it is also found in males. It is released with the onset of puberty. This hormone is responsible for increasing the bone matrix density. It helps in development of the breasts, endometrial lining after the mensuration cycle. It helps in maturation of male gametes called as sperms by regulating and controlling the functioning of testes. The accessory reproductive organs are also maintained by the estrogen that are fallopian tubes, vagina, uterus and others.