Final answer:
Your friend is using peripheral-route processing, focusing on external cues like a polystyrene cup and SUV, rather than the environmental presentation's content.
Step-by-step explanation:
The type of processing your friend may be using is c) peripheral-route processing. This processing route relies on peripheral cues and the association with positive characteristics, such as celebrity endorsements or emotions, rather than the content of the message itself. Since your friend focuses on the presenter's use of a polystyrene cup and their choice of vehicle, which are external cues unrelated to the substance of the environmental presentation, it aligns with the characteristics of peripheral-route processing.