The correct answer to the question is: Two, in: MyCo-FW-LoanApp-Work, MyCo-DivE-LoanAppDivE-Work. The rule in MyCo-FW-LoanApp-Work is used by all divisions except E which overrides it.

@ANDEM

No, the correct answer is 6. As the requirement says GetRating are different for all five divisions, we need atleast 5 rules in the corresponding 5 Division classes to implement the 5 different requirements. But, I am not sure what goes in the GetRating rule present in the FW Class. Please correct me if I am wrong.

Sorry, my bad. I was looking at the wrong question (the one above).

The question states that the framework contains a rule IsApproved that calls the GetRating rule. The IsApproved rule won’t save unless we have a GetRating rule in the framework since the framework can’t see rules in the implementation layer. The GetRating rule in the framework will only be called when you run the framework, which is only done during development, or if you add a new division without a custom GetRating rule. It is therefore recommended to configure a default behaviour in the framework version. 

Because the IsApproved rule has to be saved in the framework layer, we will need to have a dummy GetRating rule in the framework layer. My doubt is clarified now. Thanks a lot @ANDEM. :)