问题详情

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.请帮忙给出正确答案和分析，谢谢！