AMC 10 2001 Problem 11

Consider the dark square in an array of unit squares, part of which is shown. The first ring of squares around this center square contains 8 unit squares. The second ring contains 16 unit squares. If we continue this process, the number of unit squares in the 100^{\text {th }} ring is

Answer Choices
A. 396
B. 404
C. 800
D. 10,000
E. 10,404