Question

multiple choice
a researcher was studying how the brain connects to feelings.
a researcher was studying how humans express emotions.
a researcher was studying hand movements in monkeys.
a researcher was studying the social interactions of monkeys.

Explanation:

To determine the correct option, we analyze each choice. Studying hand movements in monkeys relates to understanding motor functions, often a focus in neuroscience or biology research on animal behavior and physiology. Other options involve human emotions/brain - feeling connections (more psychological in humans) or monkey social interactions (different from motor - related study). So the option about hand movements in monkeys is the most distinct in its research focus.

Answer:

C. A researcher was studying hand movements in monkeys. (assuming the third option is labeled C; adjust label as per actual question's numbering)