Viruses are very small infectious agents that only replicate in living hosts.
Good Luck! Get Good Rest and Eat Something High In Carbohydrates To keep you going!
Money(job)
Company(how good its worked)
Communication
Pyrethrin, You should know this lol
Well stress can cause a lot of health issues. This question is asking how prolonged stress results in the increase in illnesses. Prolonged stress can cause for example; Anxiety Disorder, High Blood Pressure, Mental Disorder, Irritable Bowl Syndrome, Diabetes, and more. I am not sure about choice A because that is not necessarily correct. A stressful life can trigger asthma if you have the condition already so choice B is a possibility. Stress almost always has an effect on the immune system so choice C is the best answer so far. Stress could cause the fight of flight response but I don't think that choice D is what they are looking for.
I would say choice C.
Hope This Helps!