What is 7.8 × 10^5 m/h in kilometers per day?
A3.24 × 10^10 km/day
B3.24 × 10^8 km/day
C1.872 × 10^6 km/day
D1.872 × 10^4 km/day
A3.24 × 10^10 km/day
B3.24 × 10^8 km/day
C1.872 × 10^6 km/day
D1.872 × 10^4 km/day