Which of the effects listed occur as a result of inhaling both carbon monoxide and nicotine from cigarette smoke?
1) increased heart rate
2) increased risk of cardiovascular disease
3) increased risk of emphysema
4) increased risk of lung cancer
1 )
1, 2 and 3
1 and 2 only
3 )
2, 3 and 4
4 )
3 and 4 only
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