Technician a Says That the Labyrinth Seal (Drum Groove) Helps

Technician A says that the labyrinth seal (drum groove) helps to keep water from getting into a drum brake. Technician B says that only synthetic brake grease, lithium brake grease or anti-seize compound should be used as a brake lubricant. Which technician is correct?

A) Technician A only
B) Technician B only
C) Both Technicians A and B
D) Neither technician A nor B

Correct Answer:

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