Effects of estrogen include a. growth of the larynx b. growth of the breasts at puberty c. deepening of the voice d. increased oiliness of the skin

The right option is b. growth of the breasts at puberty

Estrogen is a  sex hormone and it is one of the most important hormones for women, together with progesterone. During puberty, estrogen hormones are released in line with each monthly menstrual cycle by the ovaries and it helps in the development and maintenance of female characteristics in the human body such as breasts, pubic and armpit hair. Estrogen also regulate the menstrual cycle and reproductive system of women.

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.