Question

The persistence of corpus luteum during pregnancy is due to
(a) LH
(b) Estrogen
(c) Progesterone
(d) hCG

Answer 1

I think it's option C

corpus luteum secretes progesterone which is very important in the maintenance of pregnancy

corpus luteum degenerates in the case of there is no pregnancy so progesterone stops secreting and endometrial wall breaks and leads to cyclical blood flow

hope this ans helps you..

Answer 2

I think ans(d) because hcg play very imp role in persistence of pregnancy