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23. 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. Non-Latino white girls experience puberty earlier than African-American girls.

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