An Observational Study Was Conducted on the Gender-Role Socialization of Adolescents

An observational study was conducted on the gender-role socialization of adolescents by their mothers following adolescents' performance on a task which is designed for failure. The study found that mothers of boys:

A) were more likely than the mothers of girls to encourage their children's expression of negative emotion.
B) were less likely than the mothers of girls to encourage their children's expression of negative emotion.
C) and girls encouraged expression of negative emotion equally to each other.
D) who adhered more traditional gender roles, were most likely to encourage their children's expression of negative emotion.