Write an application that uses an extension method for the Patient class. Th e method computes and returns a Patient’s quarterly insurance payment (one-fourth of the annual premium). Th e application...

Write an application that uses an extension method for the Patient class. Th e method computes and returns a Patient’s quarterly insurance payment (one-fourth of the annual premium). Th e application should allow the user to enter data for fi ve Patients and then display all the Patient data for each, including the quarterly payment. Save the program as PatientDemo3.cs.