Which of the Following Statements About Menarche Is Correct

Multiple Choice

Which of the following statements about menarche is correct?

A) Among girls in industrialized countries,menarche occurs,on average,between the ages of 8 and 10.
B) Menarche typically occurs two years after the beginning of indicators such as changes in the breast and pubic hair.
C) Only 50% of girls experience menarche between the ages of 11 and 15.
D) In industrialized countries,the average age of menarche has remained fairly stable for more than 100 years.