I'm pretty sure the answer is
B.) To see if your exercise frequency is enough
It is (B) it is strange but it does weaken the immune system
Individual Health is focused on one patient, public health is focused on health of populations
True, People think it doesnt effect you at all which is why crashes happen.
If they are regarding more serious matters than it would be criminal, if it was something like your roommate didn't pay his or her share of the rent it would be civil.
