I guess I would be somewhere between three and four, but I voted for the fourth option. I only ever smoked cigarettes when I was drinking, but it's not like I'd smoke them every time I drank and was around smokers.
If you want to get super literal with the topic title, I think technically I've never smoked
a
cigarette, as in one from start to finish. But I've collectively smoked at least one cigarette's worth and I can't think of a better way to word the question