Answer:
Gender roles
Explanation:
In psychology, the term gender role/sex role refers to the range of behaviors and attitudes that society considers as appropriate for people based on their biological sex. In other words, <u>it's the roles that people consider appropriate and desired for "boys" and "girls"</u>
In this example, the act of encouraging young girls to wear dresses while encouraging young boys to engage in contact sports is a way of <u>sending the message that it is appropriate for girls to wear dresses while it's appropriate for boys to engage in contact sports</u>. Therefore this would be an example of gender roles or sex roles.
a. he consults well-known, credible sources in his research.
Explanation: