Diego Began His First Job Out of College with a Consulting

Diego began his first job out of college with a consulting firm,and wants to make a good impression upon his supervisors.He noticed the attire of the associates when he interviewed,and he decided to mimic them by wearing power-suits and Italian shoes.What social factor most influences Diego's wardrobe?

A) Culture
B) Reference group
C) Family
D) Peer group
E) Subculture