The researchers at Carnegie Mellon University are conducting experiments to determine how _____ impact the ability to fight off antibodies, prevent colds, and affect overall health.
A)loneliness
B)sociability
C)emotions
D)all of these

Question

Quizplus · Accepted Answer

The question mentions three variables: loneliness, sociability, and emotions. The researchers are investigating how all of these variables impact the immune system and overall health. Therefore, the best answer is D - all of these.

The Researchers at Carnegie Mellon University Are Conducting Experiments to Determine