What setting should Jonah look for in the camera menu to choose the file format for his photograph?

The correct choice involves looking for the "Image quality" setting in the camera menu to select the file format for the photograph. This setting often allows users to determine not only the resolution of the image but also the specific file format, such as JPEG, RAW, or TIFF.

While "Image size" typically refers to the dimensions of the image (such as width and height in pixels), it may not directly lead to the choice of file format. "Recording mode" usually pertains to settings like burst versus single shooting or specific options for capturing video versus still images, which do not influence the file format. "Flash settings" are concerned with how and when the camera’s flash fires, without any relevance to the file format of the captured image. Thus, focusing on "Image quality" is the appropriate approach to select the file format in photography settings.