Solve the Problem $84,000,000$ Miles How Long Would It Take a Rocket, Traveling At Two

Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.
-If the distance from the earth to the sun were $84,000,000$ miles. How long would it take a rocket, traveling at $2.4 \times 10^{3}$ miles per hour, to reach the sun? (Round to three places)

A) $3.5 \mathrm{hr}$
B) $3.5 \times 10^{2} \mathrm{hr}$
C) $3.5 \times 10^{3} \mathrm{hr}$
D) $3.5 \times 10^{4} \mathrm{hr}$