Which term refers to information aimed at positively or negatively influencing the opinions or behaviors of large numbers of people?

The correct term for information that is specifically aimed at influencing the opinions or behaviors of large groups of people is propaganda. Propaganda often conveys a particular message with the intent to persuade, manipulate, or shape the beliefs and actions of the audience. It is characterized by its strategic use of emotional appeals, selective factual presentation, and the potential for bias, all designed to reinforce specific attitudes or ideologies.

In contrast, while advertising and marketing also aim to influence people's choices, they are typically focused on promoting products or services rather than shaping broader public opinion or behaviors. Public relations involves managing the relationship between an organization and the public, often to create a positive image, but it does not inherently carry the persuasive connotation that propaganda does. Thus, the nature and intent of propaganda set it apart as the correct answer in this context.