When making a U-turn obstructs the movement of vehicles travelling behind, you must...
A)Signal with the brake light to warn of your manoeuvre.
B)Wait until you can perform the manoeuvre.
C)Leave the road on the right, if possible, and wait until traffic conditions allow you to perform the manoeuvre.Correct
# Explanation
When a U-turn obstructs the circulation of other vehicles, you cannot perform it at that moment. The correct solution is to leave the road on the right (if possible) and wait in a safe place until traffic conditions allow you to perform the manoeuvre without affecting other drivers. This ensures road safety and normal traffic flow.