I believe the answer is the Exhaustion stage because it is the bodies reaction to stress. The body becomes extremely susceptible to sickness because it seems to lose to respond to any new stress. Hope I helped!
C. Not touching your mouth, nose, or eyes would be the correct answer because that is how germs spread. Hope this helped!
workout sessions should be limited to twice a week,
work on several different muscles groups,
increase the weights only when you can do 3 sets of 10 repetition with ease