For developing image assets that are effective, which of these is a best practice that should be followed?

Question

Accepted Answer

Making it a habit to upload four or more relevant and unique images at the campaign or ad group level

Answer

Placing the most important content at the center 50% of the image asset

Answer

Using images with a white background since these images usually deliver better results

Answer

Providing square images exclusively in order to maximize how often assets are able to serve.