Answer :
Final answer:
A narrower than usual runway can create an optical illusion, making it appear longer than it actually is, which can affect a pilot's perception and landing approach.
Explanation:
A narrower than usual runway can cause an illusion, especially for pilots who are not used to such runways. This kind of visual illusion might make the runway appear longer than it actually is, which is option c. A longer runway. The reason for this is related to how our visual perception works. Objects with smaller widths generally appear to extend further away from us, whereas wider objects seem closer. This is a part of our depth perception and is based on visual cues that our brain interprets from the environment. So, when a pilot is approaching a narrower runway, the mind may be tricked into thinking it's longer, possibly causing them to misjudge the approach and landing distances.
