The Visual Cue We Use to Time Our Arrival At

Multiple Choice

The visual cue we use to time our arrival at, or collision with, an object is

A) the increase in the size of the object's visual image.
B) the rate of change of the size of the object's visual image.
C) estimated distance to the object divided by the velocity.
D) the ratio of the rate of change of the size of the object's visual image to its size.