Which hormone is converted from testosterone and is considered more potent?

Dihydrotestosterone (DHT) is the correct answer because it is a potent androgen that is derived from testosterone through the action of the enzyme 5-alpha-reductase. DHT binds strongly to androgen receptors and is involved in the development of male characteristics and hair growth. It is significantly more potent than testosterone itself, which means it has a greater effect on target tissues when comparing their biological activities.

The other choices do not relate directly to the conversion of testosterone in terms of androgen activity. Estradiol is a form of estrogen, which is synthesized from testosterone via aromatization but serves different functions in the body. Progesterone is a hormone primarily associated with the menstrual cycle and pregnancy, not converted from testosterone, and corticosterone is a corticosteroid involved in stress response and metabolism, unrelated to testosterone's conversion. Therefore, DHT stands out as the clear answer in this context.