Roughly, it takes light less than 0.000000003 of a second to travel a one-meter distance. Express this number in the form of a × 10n where 1 < a < 10 and is a one-digit number.(1 point)

Responses
A
3 × 109
3 times 10 superscript 9 baseline
B
3 × 10−9
3 times 10 superscript negative 9 baseline
C
3 × 108
3 times 10 superscript 8 baseline
D
3 × 10−8

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