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Date	May 2022	Marks available	1	Reference code	22M.1.HL.TZ2.40
Level	Higher level	Paper	Paper 1	Time zone	Time zone 2
Command term		Question number	40	Adapted from	N/A

Question

Hormones maintain the thickness of the endometrium during pregnancy. However, insufficient levels of hormones in early pregnancy may cause the breakdown of the endometrium, which leads to miscarriage. What could be a cause of miscarriage in early pregnancy?

A. The embryo does not produce enough HCG.

B. The pituitary gland does not produce enough FSH.

C. The endometrium does not produce enough progesterone.

D. The ovarian follicle does not produce enough estrogen.