You are developing an application that will manage customer records. The application includes a method
named FindCustomer.
Users must be able to locate customer records by using the customer identifier or customer name.
You need to implement the FindCustomer() method to meet the requirement.
Which two sets of method signatures can you use to achieve this goal? (Each correct answer presents a
complete solution. Choose two.)
A.
Option A
B.
Option B
C.
Option C
D.
Option D
For me is B & C. Why would you want a nullable parameter?
C isn’t an option since int is an alias to Int32. You will get a compiler error (tested).
B & D are the only options that compile (tested)
A is not the right answer but it would compile.