Tim rides a train to work everyday. When he looks out the window, the telephone poles nearby appear to move quickly by the window, while distant objects do not. Which monocular cue is responsible for this perception?

Tim rides a train to work everyday. When he looks out the window, the telephone poles nearby appear to move quickly by the window, while distant objects do not. Which monocular cue is responsible for this perception?

Linear perspective.
Interposition.
Motion parallax.
Texture gradients.

Linear perspective.
Interposition.
Motion parallax.
Texture gradients.