Question

which hormone is principally responsible for the sex drive in women?
testosterone
vasopressin
estrogen
progestin

Explanation:

Testosterone is a hormone that plays a role in sexual desire in women. Vasopressin is mainly related to water balance and social behavior. Estrogen is important for female reproductive system development but not the main hormone for sex drive. Progestin is involved in pregnancy - related processes.

Answer:

testosterone