Your interviewer will ask this question to understand if you know the impact of video and motion in advertising and to see how you'd share that information with a client. You can first provide reasons the mentioned ad formats should generate better responses from audiences. Support your answer with data that includes market or psychology research. You can also cite statistics that prove the difference in response compared to other format types.

Do not provide an answer that's overly basic, e.g., 'People like videos, and if you use them in your ads, they'll get more clicks.' Although it's a true statement, when educating a client the explanation needs to be slightly scientific. It would be better to explain why people are attracted and how much more they'll interact with an ad that includes a video or motion compared to one that does not.