Attitudes are acquired from all of these sources EXCEPT:

A) friends.
B) teachers.
C) business models.
D) role models.
E) culture.

Business Models

Frameworks that describe how a company creates, delivers, and captures value, essentially outlining the way it operates and makes money.

Attitudes

A mental inclination demonstrated through assessing a specific entity positively or negatively.

Sources

The origins or provenances from which something comes, such as information, funding, or materials.