Cigarette smoking has been shown to be a health hazard; ttherefore, governments should ban all advertisements that promote smoking. Which one of the following principles, if established, most strongly supports the argument? ['Advertisers should not make misleading claims about the healthfulness of their products.', 'Advertisements should promote only healthful products.', 'Advertisements should not be allowed to show people doing things that endanger their health.', 'All products should conform to strict government health and safety standards.']