Final answer:
Marcel's protesting in front of stores selling animal furs reflects the behavioral component of his attitude, which is how one acts regarding their beliefs and feelings.
Step-by-step explanation:
Marcel protests in front of stores that sell animal furs, reflecting the behavioral component of his attitude toward animal furs, which is option (c). In the study of attitudes, the behavioral component refers to the way a person acts in relation to the subject of their attitude. In this case, Marcel's action of protesting is an outward manifestation of his beliefs and feelings against the use of animal furs. Psychologists Rosenberg and Hovland emphasized that attitudes are complex and consist of cognitive, emotional, and behavioral components. Here, the focus is on behavior, which is directly observable and represents the actions that individuals take concerning their beliefs and feelings.