问题详情

According to the researchers, ______.
A．on-screen smoking has more powerful effects on children than other environmental risk factors
B．on-screen smoking has almost the same effect on children as parents" smoking does
C．children who have seen 150-plus smoking scenes are 70% more likely than those who have seen fewer to have smoked
D．children who have never seen any smoking instances in movies are not likely to try smoking请帮忙给出正确答案和分析，谢谢！