Which of the following are display advertising metrics?

The selected answer options, Conversion rate, Cost per action, and Cost per click, are correct because these are key display advertising metrics that help evaluate the effectiveness of campaigns. Conversion rate measures the percentage of users who complete a desired action, such as making a purchase or signing up for a newsletter, after viewing or interacting with an ad. Cost per action (CPA) is a metric that reflects the cost an advertiser pays for each action that results from an ad, such as a click, form submission, or purchase, providing insight into the efficiency of the ad in driving specific user actions. Cost per click (CPC) is another common metric, measuring how much an advertiser pays for each click on their ad, which is particularly useful for evaluating how well ads attract user engagement. Cost per page is not a standard display advertising metric and is not used for measuring ad campaign performance. The other three metrics are widely used in display advertising to assess and optimize ad performance.