Measured horizontally 6 inches above ground level and at least 30 feet outside the exclusion area to barrier, the perimeter band of lighting must provide a minimum intensity of:

Measured horizontally 6 inches above ground level and at least 30 feet outside the exclusion area to barrier, the perimeter band of lighting must provide a minimum intensity of:
A . 0.2 foot-candle
B . 0.3 foot-candle
C . 0.4 foot-candle
D . 0.6 foot-candle
E . 0.10 foot-candle

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Answer: A