People hugged, the less likely they were to get sick, even among individuals who frequently had tense interactions. In other words, both social support and hugging prevented against illness. The same lead researcher has previously shown that the more diverse types of social ties a person has, such as with friends, family, coworkers, and community, the less susceptible to colds they are.

The phrase "friends, familycoworkers, and community" 53-54) primarily serves to

B. clarity that only some social connections are beneficial to health.

A. Illustrate the kinds of social ties to which the author is referring

C. describe the groups of participants in the researcher's previous study

D. provide examples of people from whom readers might be exposed to Mness .