You want to turn right. How should you warn other drivers?
A)With the arm or the horn.
B)With the lights or the horn.
C)With the indicators or the arm.Correct
We must warn other drivers clearly and with sufficient notice before beginning the manoeuvre, using as a general rule the vehicle's indicator lights or, failing that, the arm. Warnings given with the vehicle's indicator lights shall remain active until the manoeuvre they signal has been completed.