Ronnie has created an image ad for her design business. When she searches Google, however, she's not seeing the image ad displayed in the search results' sponsored links. Ronnie then creates a text ad for Google, and this ad shows up in the results. She then deletes the text ad and actives the image ad again -which still doesn't show in the Google search results' sponsored links, like the other ads. Why do you suspect that the image ad isn't showing in the Google Search results as part of the other ads?