The uterine lining, or endometrium, is the internal layer of the uterus which thickens and gets filled with blood vessels in preparation to receive a fertilized egg. If this does not happen, the uterus removes this extra layer through the vagina, in a process called menstrual flow, which lasts 5 days average.
The person should have his or her thyroid gland tested using a blood test of thyroid hormone levels to find out if the person has hypothyroidism.
In my opinion the best sounding answer is C I hope this helpes<span />
It's Out Of C Or D Because It Explains It
