Final answer:
The term used when all objects from the foreground to the distant background are kept in sharp focus is a deep focus shot, which is achieved by creating a large depth of field. This requires adjusting the lens distance from the film in cameras and is the opposite of the shallow focus seen in nearsighted individuals.
Step-by-step explanation:
When all objects from the foreground to the distant background are kept in sharp focus in a photograph or film, this is known as a deep focus shot. This effect is achieved by using a smaller aperture to create a larger depth of field so that most of the scene is in focus at the same time, from the foreground to the background. On the other hand, when distant objects appear blurred because their images are focused in front of the retina rather than on the retina, as with a nearsighted person, it illustrates the opposite effect called shallow focus. This principle also applies to cameras where the distance of the lens from the film needs to be adjusted to accommodate near or far objects because the focal length needs to change to achieve clear focus.
Answer: a) Deep focus shot