A Radio Station Broadcasts at 80 MHz $2.0 \times 10 ^ { 7 } \mathrm {~m}$

Multiple Choice

A radio station broadcasts at 80 MHz. How long does it take for this radio signal to travel a distance of $2.0 \times 10 ^ { 7 } \mathrm {~m}$ through space? (c = 3.0 × 10⁸ m/s)

A) 0.15 × 10^-2 s
B) 15 ms
C) 6.7 × 10^-2 s
D) 20 ms
E) 25 ms