Raj smelled the aroma of the dinner rolls baking in the cafeteria down the hall from his classroom. what memory system is at work as raj processes this stimulus?

The correct answer is olfactory memory.

Olfactory memory refers to our memory of aromas or smells. The memory of smells is stored in the amygdala and hippocampus regions of the brain, which are two brain regions that are predominantly involved in emotion and memory. This is why olfaction (the sense of smell) is the sense most likely to trigger memory and emotions.