A cyclist is riding along a path when they suddenly spot a fallen tree branch ahead.
The cyclist performs an emergency stop to avoid colliding with the branch.
Figure 1 shows how the velocity of the bicycle changes from the moment the cyclist first spots the branch until the bicycle comes to a complete standstill.

What is the name given to the distance travelled by the bicycle during the time interval from when the cyclist first spots the branch to when the brakes are applied?
Braking distance
Thinking distance
Stopping distance
Reaction time