Matty jogs 9 km/hr. Identify the correct conversion factor setup required to compute Matty's speed in m/s.
a) 9 km/hr × 1000 m/km ÷ 3600 s/hr
b) 9 km/hr ÷ 1000 m/km × 3600 s/hr
c) 9 km/hr × 3600 s/hr ÷ 1000 m/km
d) 9 km/hr ÷ 3600 s/hr × 1000 m/km