Which of the following are the primary hormones in girls during puberty? a. testosterone and estrogen b. testosterone and progesterone c. ingesterone and estrogen d. estrogen and progesterone

estrogen and progesterone (option D)

Explanation: Hormones are chemicals messengers and they have specific target organs. Hormones that stimulate the organs during puberty in females are estrogen and progesterone. Puberty is the time frame when the secondary sexual characteristics develop (where a girl physically matures to a women). Estrogen is secreted by the ovaries and is responsible for the body hair growth, widening of the hips and development of breasts and also plays an important role in regulating the menstrual cycle. Progesterone is also secreted by the ovaries that maintains the uterus lining.