Answer: A. attitude
Explanation: Attitude is simply defined as one's disposition or state of mind. It is the evaluation of an idea, object or a person. It refers to a set of emotions, beliefs, and behaviors exhibited by an individual toward an object, a person, thing, or an event and is often as a result of external and internal influences. Thus, they have a powerful influence over behavior. Suzanne's attitude is the psychological factor that is primarily responsible for her buying behavior wherein she avoids buying paper-based products unless they are made from recycled paper. This is essentially due to her role as an environmental activist.