How do you apply the Situational Layer CakeTM in this scenario?

An organization has two lines of business: selling books for children and reselling college textbooks. The division selling books for children can use the same basic user interface (UI) as the division reselling textbooks with the exception of the payment methods.

How do you apply the Situational Layer CakeTM in this scenario?
A . Place the UI rules in the base layer, and create a new layer for the payment rules for both lines of business.
B . Place the UI rules and generic payment method rules in the base layer, and create a new layer for the division-specific payment rules.
C . Place the UI rules in the base layer, and create a parallel base layer for the payments rules.
D . Place the UI rules in the base layer, and create a new layer for the payment rule for each division.

Answer: B