Suzanne is an environmental activist who avoids buying paper-based products unless they are made from recycled paper. Which psychological factor is primarily responsible for Suzanne's buying behavior in this scenario?

The correct answer is letter "B": social role.

Explanation:

Social role is the appropriate behavior expected from individuals according to their status. Different people have different statuses, thus, play different roles within a community, in theory. However, the behavior one individual performs depends basically on the values and experiences that a person has acquired based on interactions with society.

Therefore, as Suzanne is an environmental activist her social role implies taking diverse actions that reflect she is aware of environmental conservation such as purchasing recycled paper.