Represent the Area of the Shaded Region in the Following $23 \pi x$

Multiple Choice

Represent the area of the shaded region in the following figure. The length of a radius of the smaller circle is x , and the length of a radius of the larger circle is 5 x .

A) $23 \pi x$
B) $25 x ^ { 2 }$
C) $24 \pi x$
D) $24 \pi x ^ { 2 }$
E) $25 \pi x ^ { 2 }$