This is a hard question because it really all depends on the person. I would say you are more apt to abuse it orally than smoked, or its high either way.
It could be B or D
No because sometimes they have to put animals down and that’s something I, as a full hearted human, could not do.
If the disease is communicable, it is contagious. If it is airborne, it is transferred through the air, as opposed to physical touch or blood-borne. Being in a confined space, such as an ambulance, with an airborne communicable disease means you have most definitely been exposed to it.
Well no-one really know's but my perception of life is all a big lesson for what will be in the afterlife.