Cutting down on your consumption of nicotine over time until eventually your consumption is non-existent. if you quit cold turkey, you will go through withdrawals. Not fun.
I would say D. Cuts and bruises
You should always clean and sanitize surfaces and utensils before every use as bacteria and germs live on surfaces. It is especially important if you are eating off it like a spoon or fork.
The answer would be D. all of the above