If \(x\) represents the sum of the interior angles of a regular hexagon and \(y\) represents the sum of the interior angles of a regular pentagon, then the difference between \(x\) and \(y\) is equal to the sum of the interior angles of what geometric shape?

A. Triangle
B. Square
C. Rhombus
D. Trapezoid
E. Pentagon

Answer: A

Source: Manhattan GMAT