A) Progesterone
B) Oestrogen
C) Human chorionic gonadotropin
D) Prolactin
Correct Answer: C
Solution :
Upon implantation the cells of the developing blastocyst and placenta secrete Human Chorionic Gonadotropin (HCG). Presence of HCG in the urine of pregnant mother is the most common indicator of pregnancy. The levels of HCG are usually high 10 days following conception to permit detections through the use of a home pregnancy kit.
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