Which of the following metrics is a common creative test success criterion that can indicate how often people click on your ad after seeing it?

Click-through Rate (CTR) is the correct answer because it directly measures how often people click on your ad after seeing it. It's calculated as the number of clicks divided by the number of impressions, making it a key indicator of creative appeal and effectiveness. A higher CTR suggests your ad creative is engaging and relevant to the audience. Impressions represent the total number of times your ad was displayed, but not necessarily clicked. Conversion Rate (CVR) measures the percentage of clicks that lead to a desired action (like a purchase), not the initial click itself. Reach indicates the total number of unique users who saw your ad, not their interaction with it.