Bethany is a first$-$year college student. She really wants to be part of the Alpha Kappa Alpha sorority on campus, so she tries to impress its members by dressing like them, watching the same television shows they watch, and frequenting the same coffee shop that they do$.$ For Bethany, the sorority and its members are $a(n)$

Multiple Choice

approval center.

focus group.

standard bearer.

cultural norm.

reference group.