Susan drives by an unusually colorful apartment building each day on her way to work. Initially, she does not think highly of the structure and has a mild dislike for it. However, after several months of commuting, she starts to like the apartment building and even considers renting an apartment there. This change in Susan's feelings about the building best demonstrates:

- Informational social influence.
- Normative social influence.
- The comparison effect.
- The mere exposure effect.