Answer:
The cocktail party effect
Explanation:
The cocktail party effect is a phenomenon in which the brain is able to focus its listening attention on a particular stimulus, while filtering out a range of other stimuli. This resembles a party because people are able to concentrate on a single conversation even when in a noisy room. This is the case with Carolina. Even though there are two stimuli going on at the same time, she is able to "tune into" one of these and "tune out" all others.
