Hand hygiene, PPE (personal protective equipment), and work practice/engineering controls. This includes needle safety devices, needle-less systems, sharps containers, HEPA filters, and negative pressure rooms.
Throat. it’s basically the only one that makes sense
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!