The advertising campaign for Roadwise auto insurance is notable for the variety of its commercials, which range from straightforward and informative to funny and offbeat. This is unusual in the advertising world, where companies typically strive for uniformity in advertising in order to establish a brand identity with their target demographic. But in this case variety is a smart approach, since purchasers of auto insurance are so demographically diverse. Which one of the following, if true, adds the most support for the conclusion of the argument? ['Advertising campaigns designed to target one demographic sometimes appeal to a wider group of people than expected.', 'Advertising campaigns that target one demographic often alienate people who are not part of the target demographic.', 'Fewer people are influenced by auto insurance commercials than by commercials for other types of products.', 'Efforts to influence a target demographic do not pay off when the content of the advertising campaign falls short.']