What is the right course of action?

When you intend to overtake but then decide not to, it is important to turn off your left turn signal immediately after canceling the maneuver. Keeping the signal on can confuse other drivers, making them think you might pull out or turn left, which could create dangerous situations. The rule is to indicate intentions clearly and cancel signals as soon as they no longer apply, only turning them back on if appropriate—for example, if the red vehicle overtaking you has completed its maneuver and it is safe to signal again. You answered correctly by selecting the response that the right time to use the turn signal is after the other vehicle has overtaken you, which prevents misunderstandings and maintains road safety.