Which Statement Concerning Toddlers' Understanding of Gender Roles Is True

Which statement concerning toddlers' understanding of gender roles is true?

A) Females appear to understand gender-based activities much earlier than males.
B) Males appear to understand gender-based activities much earlier than females.
C) Females and males appear to understand gender-based activities at the same age.
D) Neither males nor female toddlers show any understanding of gender-based activities.