A.
It is a series of health care measures to protect the health of both partners and their next generation before and after marriage
B.
It includes premarital medical examinations, classified guidance on abnormal conditions, popularization of knowledge of marriage and childbearing, and guidance on marriage and childbearing health care
C.
The aim is to ensure healthy marriages and avoid inappropriate marriages and childbearing between blood relatives or patients with genetic diseases
D.
None of the above is true