What is the MINIMUM lighting requirement (or telecommunications spaces?

What is the MINIMUM lighting requirement (or telecommunications spaces?
A . 50 lux (4.6 toot-candles) of lighting in the horizontal plane and 20 lux (1.9 fool-candles) of lighting in the vertical plane measured al at 1 meter (3.28 feet) above the finished floor
B . 200 lux (18 6 fool-candles) of lighting In the horizontal plane and 500 lux (46 foot-candles) of lighting In the vertical plane measured at at 1 meter (3.28 feet) above the finished floor
C . 500 lux (46 foot-candles) of lighting in the horizontal plane and 200 lux (18 6 foot-candles) of lighting in the vertical plane measured at at 1 meter (3 28 feet) above the finished floor
D . 500 lux (46 foot-candles) of lighting in the horizontal plane and 500 lux (46 foot-candles) of lighting in the vertical plane measured at at 1 meter (3 28 feet) above the finished floor

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Answer: C