Answer:
I would pick D
Explanation:
A basic definition of depth of field is: the zone of acceptable sharpness within a photo that will appear in focus. ... Three main factors that will affect how you control the depth of field of your images are: aperture (f-stop), distance from the subject to the camera, and focal length of the lens on your camera. For many cameras, depth of field is the distance between the nearest and the farthest objects that are in acceptably sharp focus in an image. The depth of field can be calculated based on focal length, distance to subject, the acceptable circle of confusion size, and aperture.