Andrea inscribed a circle inside a regular pentagon, circumscribed a circle around the pentagon, and calculated the area of the region between the two circles. Bethany did the same with a regular heptagon (7 sides). The areas of the two regions were A and B, respectively. Each polygon had a side length of 2 . Which of the following is true?
Answer Choices
A. A=\dfrac{25}{49} B
B. A=\dfrac{5}{7} B
C. A=B
D. A=\dfrac{7}{5} B
E. A=\dfrac{49}{25} B