What is the main idea of the articleCigars:Healt

What is the main idea of the article"Cigars:Health Effects and Trends"?

A. When it comes to cancer,cigars are not any safer than cigarettes.

B. Cigars may be addictive while cigarettes are not easily so.

C. Cigars contain less harmful substances than cigarettes.

D. Increase in cigar-smoking does not affect public health much.