General Medicine General 78819aed According to CDC, past smoker is A Person who had smoked >100 cigarettes previously and is not smoking currently B Person who has smoked >10 cigarettes previously and is not smoking currently C Person who has smoked >100 cigarettes previously and reduces to 10 cigarettes per day D Person who has smoked > 100 cigarettes in his or her lifetime, who smokes now, but does not smoke every day