Implement in C sharp,

define a class CircleA that has a method Compute. The method will compute the area of a circle. It has an integer parameter representing the radius of a circle, and returns the area of a circle represented as a double value.

-define a class CircleB that has a method Compute that will compute the perimeter of a circle. The method has an integer parameter representing the radius of a circle, and return as the perimeter of a circle represented a double value.

-define a delegate that has an integer parameter, and a returned value whose data type is double.

-define a test class that will create an instance of each class. Then, when executing the delegate, the methods in two classes will be executed.