Write Each Rate or Ratio as a Fraction in Lowest $\frac{50 \text { miles }}{1 \text { hour }}$

Write each rate or ratio as a fraction in lowest terms.
Change to the same units when necessary.
-400 miles in 8 hours

A) $\frac{50 \text { miles }}{1 \text { hour }}$
B) $\frac{1 \text { hour }}{50 \text { miles }}$
C) $\frac{400 \text { miles }}{8 \text { hours }}$
D) $\frac{8 \text { hours }}{400 \text { miles }}$