Which two options require custom development with the OPA Mobile SDK?
In the line covered by the red block, which two grouping operators would allow the rule to compile without error?
You are working on a project where you need to develop a rule to calculate the currency attribute "the person's total monthly school cost". This attribute is calculated as follows: (1) Add "the annual cost of the tuition" and "the annual cost of lodging". (2) Subtract "the total annual scholarship amount" from the attributes previously summed. (3) Divide the result by 12.
How should you achieve this?