Final answer:
Children begin learning gender roles shortly after birth, as they become aware of societal expectations by age two or three, with most being socialized into these roles by four or five years of age. The correct option is B.
Step-by-step explanation:
Learning about gender roles begins at a very young age. Children are aware of gender roles by age two or three, and by four or five, most are firmly entrenched in culturally defined gender roles, according to the research of Kane (1996). This acquisition of gender roles happens through socialization, a process in which children learn to behave in ways that align with societal values, beliefs, and attitudes.
In response to the question, What stage of life does learning gender roles begin after? the answer is b. birth. This is because the socialization process starts early in life, well before the other listed stages such as adolescence, middle adulthood, or late adulthood.