How does approaching a runway that is narrower than normal affect a pilot's visual perception during a visual approach?

1. The runway appears farther away, causing the pilot to perceive they are higher than they actually are, which can lead to a low approach.
2. The runway appears closer, causing the pilot to perceive they are lower than they actually are, which can lead to a high approach.
3. The runway appears to be sloping downward, causing the pilot to overshoot the touchdown zone.
4. The pilot perceives no difference, as runway markings provide absolute visual altitude cues.