Task: Instance Description Understanding (ontology: Sciences/Biology)

Which of the following definitions best describes the instance 'Premarin'?

A. A brand of conjugated estrogens used in menopausal hormone therapy today. the instance was utilized in transgender hormone therapy by Harry Benjamin for the first time in 1948. the instance was derived from Emmenin in order to lower manufacturing costs and so was derived from the urine of pregnant mares instead (hence the name the instance, from pregnant mares' urine).
B. A phenomenon observed when an activity, occupation, or product is increasingly associated with women and/or femininity. This is stereotypically coupled with a "the instance", wherein men begin leaving behind such activities, occupations, or products.
C. A rule in some non-monogamous relationships which only permits other sexual or intimate experiences when the individual partners are more than 100 miles (161 km) apart from one another.
D. A transgender person who is not taking hormones

Answer: A brand of conjugated estrogens used in menopausal hormone therapy today. the instance was utilized in transgender hormone therapy by Harry Benjamin for the first time in 1948. the instance was derived from Emmenin in order to lower manufacturing costs and so was derived from the urine of pregnant mares instead (hence the name the instance, from pregnant mares' urine).