The population density of a region is the number of people living in the region per square mile. Jackson County is a rectangle whose length is \(l\) miles and whose width is \(w\) miles. How many people live in Jackson County if its population density is \(d\)?
(A)\(dlw\) (B)\(\frac { lw } { d } \) (C)\(\frac { d } { lw } \) (D)\(\frac { 2(l + w) } { d } \) (E)\(\frac { l + w } { 2d } \)
A