Earlier, we explored the value of incorporating 'show and tell' into your creative strategy. Which of the following is an example of 'show and tell'?

Show and tell" in advertising refers to the practice of visually demonstrating a product or service ("show") while simultaneously explaining its benefits or features ("tell"). Therefore, directly showing the product in your ad creative is a fundamental example of the "show" component. The other options are incorrect because they relate to ad copy specifics ("Say 'Hey Reddit'") or technical aspect ratios ("Only use 1:1 aspect ratio," "Only use 4:5 aspect ratio"), none of which inherently embody the "show and tell" principle of demonstrating and explaining.