The proportion of fat calories in the diets of people who read the nutrition labels on food products is significantly lower than it is in the diets of people who do not read nutrition labels. This shows that reading these labels promotes healthful dietary behavior. The reasoning in the argument above is flawed in that the argument ['illicitly infers a cause from a correlation', 'relies on a sample that is unlikely to be representative of the group as a whole', 'confuses a condition that is necessary for a phenomenon to occur with a condition that is sufficient for that phenomenon to occur', 'draws a conclusion about the intentions of a group of people based solely on data about the consequences of their behavior']