In a Study Conducted by Cohen and Colleagues, High-Stress and Low-Stress

In a study conducted by Cohen and colleagues, high-stress and low-stress people were given nasal drops that contained a common cold virus.These researchers found that:

A) the high-stress people who received the virus were more likely to develop cold symptoms
B) the low-stress people who received the virus were more likely to develop cold symptoms
C) all the participants developed colds, but the colds were more severe in the high-stress group
D) all the participants developed colds, but the colds were more severe in the low-stress group