During Early Childhood,children's Gender-Stereotyped Beliefs __________

During early childhood,children's gender-stereotyped beliefs __________.

A) emerge slowly, as parents treat boys and girls in similar ways
B) strengthen so much that many children apply them as blanket rules that should not be violated
C) are highly flexible with respect to clothing and hairstyle but less so with respect to types of play
D) are flexible until about age 5, after which they become more rigid