When increasing speed...
A)reaction capacity increases.
B)reaction time decreases.
C)reaction distance increases.Correct
# Explanation
When increasing speed, **the reaction distance increases** because the vehicle covers more meters during the time it takes the driver to perceive a danger and react. The reaction time remains constant (approximately 1 second), but the distance traveled in that time is greater at higher speeds. For example, at 100 km/h more meters are covered in one second than at 50 km/h.