Which of the following categories represent common static imagery tests on Reddit? (Select all that apply)

Common static imagery tests on Reddit often involve elements that can be easily varied in an image to see what resonates best with the audience. "Products shown" is a key test category because advertisers can experiment with different product angles, quantities, or variations to determine which presentation drives the most engagement or conversions. Similarly, "Displaying a logo" is a common test, as advertisers might test the presence, size, or placement of their brand logo to see its impact on brand recognition and ad performance. "Video length" and "Video file format" are incorrect because these are parameters specific to video ads, not static imagery.