Using image content, you can add an image to show to the responder. This is commonly used for graphics or any other visual content to help explain concepts.
If you would like to include text with your image, use the informational content type instead. Also if you would like to include a video, use the video content type.
If you type in text into the Alt field that appears in the settings menu with the question selected, you can add alternative (ALT) text to your image.
Adding ALT texts to your images will improve accessibility for the visually impaired, who might be using assistive devices such as screen readers.