Click on the correct answer. 3. (1) In college, students experience a lot of stress around exam time. (2) Knowing that, researchers took saliva??

samples from healthy college students before, during, and after final exams. (3) They tested the saliva for the presence
of a substance which fights infection (4) The tests showed that the infection-fighter was at its lowest level during the
exam period: (5) In addition, many of the students developed colds during final exams. (6) In a related study, older adults
who were receiving flu shots were interviewed. (7) About half of those adults reported living with a high degree of stress
(8) Six months after receiving the shot, blood tests showed that the group that had reported having little stress in their
lives had a far higher degree of immunity than the highly-stressed group (9) The adults living with more stress were at
much greater risk for catching flu.
The implied main idea of the selection is
a Flu epidemics could be eliminated if more people would learn how to deal with stress.
b. College students who do not prepare ahead of time for exams are more likely to get sick
colder adults often have to cope with a high degree of stress
d Apparently, the more stressed a person is the lower his or ner immunity to disease