How do you configure the case types to reflect their relationship?

A Customer applies for a credit card. In order for the credit card to be approved, the credit card consultant must receive the results of a credit check.

How do you configure the case types to reflect their relationship?
A . Make credit check a child case of credit card request.
B . Make both loan request and credit check top cases.
C . Make credit card request a child case of credit check.
D . Make credit check a spin-off case of credit card request.

Answer: A