Suppose That Megan Is Researching Her Family Tree and Comes

Multiple Choice

Suppose that Megan is researching her family tree and comes across her great-great-great grandmother's diary. She notes that the diary for the year 1840 describes that age at which her ancestor reached menarche. If her grandmother was typical, the diary would note that this ancestor would have been how old?

A) 10 years old
B) 12 years old
C) 14 years old
D) 16 years old