Answer:
Option 1 is the answer - smoke more to maintain their nicotine intake
Explanation:
Nicotine is a highly addictive component of tobacco that leads to the continuous smoking of cigarette by habitual smokers. When nicotine obsession develops, it becomes very difficult to refrain from the use of tobacco products by addicted individuals.
Experimental studies on reduced nicotine content cigarettes have shown that when chain-smokers are presented with low nicotine cigarettes, they tend to adjust their smoking habits so as to maintain the amount of nicotine intake they need.