Cardiovascular disease, Cancer, Chronic Respiratory disease and Diabetes
It’s plain and simple if you just Abstain from it or just Don’t do it there is no way you could reap any consequences from your actions!
I find
C. Washing hands
the best answer as it is commonsense to wash your hands to help with protecting you, and others from pathogens. It also explains 'Direct Contact' so it must be something to do with 'hands'