Which code segment should you use?

You are developing an application for a bank. The application includes a method named ProcessLoan that
processes loan applications. The ProcessLoan() method uses a method named CalculateInterest. The
application includes the following code:
You need to declare a delegate to support the ProcessLoan() method.
Which code segment should you use?

A.
Option A

B.
Option B

C.
Option C

D.
Option D