Recently, Janine Has Become Very Curious About Her Genitals and She

Recently, Janine has become very curious about her genitals and she has begun asking lots of questions about the "differences" between girls and boys. Generalizing from information presented in the text, your best guess is that Janine is about how old?

A) 2-3 years old
B) 3-4 years old
C) 4-5 years old
D) 5-6 years old