单选题：回答题Richard:In my opinion, smoking is only an amusement, like

回答题
Richard:
In my opinion, smoking is only an amusement, like playing cards, reading, etc．Many years ago, when an adult handed me a cigarette and lit it for me, I felt grown up．When I am with friends and have nothing to say, we smoke, consequently we no longer feel embarrassed．Some-times, I light a cigarette, suffering and nervousness vanishing with the smoke, I can't help saying inwardly: Hello, cigarette, my old friend, I' m coming to meet you again．
Stanton:
Many people believe smokers have the fight to smoke．But they also believe that others shouldn't have to pay a price．The risk of tobacco smoke is greater than the risk of radon gas is ton on-smokers．We're talking maybe 40 percent greater．And if you're talking about all the carcinogenic air pollutants that EPA regulates, it's 100 times greater．
Davis:
According to our investigation, tobacco smoke in the home and workplace could be killing46, 000 non-smokers each year in the United States．That's 3, 000 lung cancer deaths, 11, 000 from other cancers and 32,000 heart disease deaths．That would make passive smoking the leading preventable cause of death in the United States after alcohol and smoking itself．Smoking kills390,000 while alcohol 120, 000．
James:
Passive smoking has become the principal battleground for the tobacco industry and its opponents in the 1980s．It is no longer merely a health issue, but political and environmental．Cigarette pollution is fouling the air．According to the Environmental Protection Agency's indoor air program's result, we know that the indoor environment is far more polluted than the outdoor environment．We've seen that again and again wherever we've looked all over the United States．
Winston:
Sir, another fact about smoking is that cigarettes give people a good deal of pleasure．There is considerable evidence, surprisingly little publicized, showing that smoking produces certain beneficial effects in human beings．Smoking counteracts some decrease in efficiency, and smokers improve their performance in complex situations while smoking．There is also evidence showing that nicotine can produce a tranquilizing effect during high emotional and shock situations, while on the other hand stimulating concentration in tedious situations．
Richard A．Passive smoking is the third preventable cause of death．
B．Smokers have the right to smoke．
C．Smoking produces some positive effects in some complex situations．
D．Second-hand smoke is more harmful to non-smokers than those cancer- inducing air pollutants．
E．Cigarette pollution has caused outdoor environment even worse．
F．Smoking can help people get rid of nervousness．
G．Smoking is also an environmental issue．