You are modifying an existing application that manages employee payroll. The application includes a
class named PayrollProcessor. The PayrollProcessor class connects to a payroll database and
processes batches of paychecks once a week.
You need to ensure that the PayrollProcessor class supports iteration and releases database
connections after the batch processing completes.
Which two interfaces should you implement? (Each correct answer presents part of the complete
solution. Choose two.)

A.
IEquatable

B.
IEnumerable

C.
IDisposable

D.
IComparable

Explanation:
IEnumerable
IDisposable Interface
Exposes an enumerator, which supports a simple iteration over a non-generic collection.
Defines a method to release allocated resources.
The primary use of this interface is to release unmanaged resources.