Question ID:PT67 S4 Q7 Passage:Even though MacArthur's diet book helped many people lose weight, MacArthur should not have published it. It recommended such small portions of fruits and vegetables that it undoubtedly damaged the health of many who followed the diet. MacArthur is a physician, so MacArthur either knew or should have known that diets low in fruits and vegetables are unhealthful. Stem:Which one of the following principles, if valid, most helps to justify the argument's reasoning? Correct Answer Choice:EChoice A:One should not undertake an action if one knows that doing so would seriously damage the health of many people. Choice B:One should not follow a particular method for achieving some end if doing so has the potential to damage one's health. Choice C:One should publish a book recommending certain health-related measures if doing so is likely to improve many people's lives without also causing harm. Choice D:One should not publish a book recommending a particular means of attaining a goal unless one knows that the particular means can bring about that goal. Choice E:One should not publish a book recommending a particular course of action if one either knows or ought to know that taking that course of action would be unhealthful.