Actually, I know you think the answer is C, but there is a lot more that goes into your question rather than simply asking how many...
How long have they been smoking, etc.
But, more to the point...
1. Regardless if it is 1 person in 10,000 who get cancer, isn't that 1 too many?
2. Studies have shown that second hand smoke is just as lethal given equal amounts. So, should someone, even that 1 in 10,000 potentially die because of something he or she didn't even do, but was surrounded by?
I find it interesting that none of my friends smoke, and I think that people generally gravitate towards this (people who smoke are more likely to have friends that smoke and vice versa).
I don't know why people smoke, knowing the health risks (not just cancer btw), and I don't know why more smokers are not more considerate to those who do not smoke.
It is like you have a chip on your shoulder and something to prove.
Not that this is relevant or anyone really cares, and it is shallow... If I see a woman, the most beautiful woman on the planet for me, and she smokes, she is instantly unattractive.
Finally... (and I pray this doesn't turn into that other thread because I am not getting into that again)... There are so many things that is bad about smoking that are not even related to dying....
You smell disgustingly, and because you smoke, you have no clue how bad you smell.
Your teeth generally rot, or get tar build up over your plaque
It damages your skin to a point where it is obvious...
your hair... and more
Sorry... it makes about as much sense as it did in the US when GWB Jr. got elected president, not just once, but twice.