Light travels at a speed of approximately
A) 80,500 kilometers per hour (50,000 mph) .
B) 300,000 kilometers per hour (186,336 mph) .
C) 300,000 kilometers per second (186,333 miles per second) .
D) 1,000,000,000 kilometers per second (621,118,012 miles per second) .
Correct Answer:
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