Which of the following statements about the timing and variations in puberty is TRUE?
A) Children in European countries mature up to a year earlier than their American counterparts.
B) For girls, menarche is considered within the normal range if it appears between the ages of 9 and 15.
C) Genes have little to do with when and how puberty develops.
D) In China, girls in rural areas started puberty earlier than girls in urban areas.

Question

Quizplus · Accepted Answer

Menarche, the first menstrual period, is considered within the normal range if it occurs between the ages of 9 and 15. This reflects the typical age range for the onset of puberty in girls.

Which of the Following Statements About the Timing and Variations