Technician a Says That Both Caution and Warning Indicate a Potentially

Multiple Choice

Technician A says that both caution and warning indicate a potentially hazardous situation. Technician B says that the color of the sign background does not matter and is only there to provide contrast to the color of the text. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B