If a hazard ahead will require unexpected slowing, how can you warn drivers behind you?
Correct answer: C. – Lightly tap the brake pedal to flash the brake lights
A few light brake-pedal taps can flash the brake lights and alert following drivers that you are about to slow. Georgia law also requires an appropriate signal before stopping or suddenly decreasing speed when there is an opportunity to signal. Avoid waiting until the last moment and then braking abruptly.
Source: O.C.G.A. § 40-6-123(c) – Turning Movements; Signals Required on Turning, Changing Lanes, or Stopping, Georgia Commercial Driver's Study Guide — § 2.5.1, “Signal Your Intentions”

