If you are a 13-year-old girl’s mother，how do you teach her when she enters puberty？

If you are a 13-year-old girl’s mother，how do you teach her when she enters puberty？
A.pay attention to maintaining vaginal hygiene.
B.change underwears frequently
C.use clean, soft sanitary products and change them in time
D.avoid swimming and bathing during menstruation，and exercise appropriately
正确答案：pay attention to maintaining vaginal hygiene.；change underwears frequently；use clean, soft sanitary products and change them in time；avoid swimming and bathing during menstruation，and exercise appropriately