AMC 8 1994 Problem 5

Given that $\text{1 mile} = \text{8 furlongs}$ and $\text{1 furlong} = \text{40 rods}$, the number of rods in one mile is $\text{(A)}\ 5 \text{(B)}\ 320 \text{(C)}\ 660 \text{(D)}\ 1760 \text{(E)}\ 5280$