What is the difference between using AND or OR targeting?

When building an audience, "AND" and "OR" are logical operators that define how targeting attributes combine. Using "AND" between attributes means a member must meet all specified criteria to be included in the audience, thus narrowing the potential reach. For example, "Job Title: Marketing Manager AND Location: New York" targets only marketing managers in New York. Conversely, using "OR" means a member must meet at least one of the specified criteria, thereby widening the audience. For instance, "Job Title: Marketing Manager OR Job Title: Marketing Director" targets individuals with either title. The other options are incorrect because "OR" targeting is generally compatible with Audience Expansion (though it's a separate feature), "OR" works with interests, and the effects on audience size are reversed in the third incorrect option.