Final answer:
The primary purpose of the sentence is to Option(B) "persuade" the audience about the obligations of advertisers not to mislead consumers. It is tied to the rules of the FTC which allows some exaggeration but demands truthfulness in factual claims, hence emphasizing the concept of 'let the buyer beware'.
Step-by-step explanation:
The sentence "Advertisers should not be allowed to continue misleading consumers by lying or exaggerating" has the primary purpose of persuading the audience. It clearly takes a stance, suggesting advertisers have an obligation to be truthful and not mislead with imperfect information. According to the guidelines enforced by the Federal Trade Commission (FTC), while advertisements can contain excitement regarding the general delight of a product, any claim presented as a fact must indeed be true.
The allowance of some exaggeration in advertising under the FTC rules points to a degree of freedom for creativity, yet it necessitates the presence of truth in factual claims. The saying 'Caveat emptor' or 'let the buyer beware' underlines the consumer's responsibility to be skeptical and vigilant of the information presented in advertisements.