In case of contradiction between the signals made by a driver with their arm and those of the direction indicators of their vehicle, which shall prevail?

In case of contradiction between the signals made by a driver with their arm and those of the direction indicators of their vehicle, which shall prevail?
A)Those made with the direction indicators.
B)Those made with the arm, provided they are clear and visible.Correct
C)Being in contradiction, both signals are cancelled.
Signals made directly by the driver prevail over those made with the direction indicators, provided that these signals made with the arm can be clearly seen by the drivers to whom they are addressed.