Which of the following are true about expanded targeting?

Expanded targeting on Pinterest allows advertisers to increase their reach by enabling the platform to identify and target additional relevant audiences beyond the initial keywords and interests defined for an ad group. This means Pinterest's algorithms will find users with similar behaviors and preferences, effectively broadening the campaign's potential audience. It augments the existing targeting strategy with a single click, simplifying the process of finding more relevant users. However, if no initial targeting (like interests or keywords) is selected, expanded targeting will not broaden the audience; instead, it will narrow the targeting by attempting to infer and focus on a specific, likely small, audience based on other campaign parameters, which is generally not its intended use. Expanded targeting does not require advertisers to upload custom datasets; it leverages Pinterest's internal data and algorithms.