The Number of Viewers of a Television Series Introduced Several

The number of viewers of a television series introduced several years ago is approximated by the function , where N(t) (measured in millions) denotes the number of weekly viewers of the series in the t ^th week. Find the rate of increase of the weekly audience at the end of week 12.

A) 0.495 million/wk
B) 8.082 million/wk
C) 16.332 million/wk
D) 2.694 million/wk
E) 0.165 million/wk