A program uses a char variable named department and two double variables named salary and raise. The department variable contains one of the following letters (entered in either uppercase or lowercase): A, B, or C. Employees in departments A and B are receiving a 2% raise. Employees in department C are receiving a 1.5% raise. Write the C++ code to calculate and display the appropriate raise amount. Display the raise amount in fixed-point notation with two decimal places.