B) Mainstream smoke is the term used to describe the tobacco smoke that a smoker inhales and exhales.
Tobacco smoke that smokers exhale. Secondhand smoke might also include cigarette smoke. It has a lot of dangerous, cancer-causing substances, including nicotine. Smoking in public places raises your risk of developing lung cancer and possibly other cancers as well. smoke that emanates from a tobacco product that is burning, such as a cigarette, pipe, or cigar, that has been lit. Secondhand smoke includes sidestream smoke.
To learn more about cancer click here:
https://brainly.com/question/14945792
#SPJ4
