Of the signals made by this driver, which one takes precedence?

Of the signals made by this driver, which one takes precedence?
A)The light signal, as the one made with the arm is not regulation.
B)The light signal over the one made with the arm.
C)The one made with the arm over the light signal.Correct
In the event of a contradiction between the direction indicator and the signal made with the arm, the latter shall prevail, as the lighting systems may be faulty.
The signals that can be made with the arm are:
- Change of direction to the left or stopping on that side, with the left arm extended.
- Change of direction to the right or stopping on that side, with the left arm bent upwards.
- Reversing, with the left arm extended and the palm of the hand facing backwards.
- To considerably reduce speed or bring the vehicle to a stop, with the left arm moving alternately up and down.