What are two valid reasons for defining a case type within a case type-specific ruleset? (Choose Two)

Table A contains customer information, Table B contains complaints submitted by customers. Table C contains positive feedback submitted by customer.
You are tasked to write a report that lists all rows in Table a where customer, the number of rows in Table B related to Table A are greater than the number of rows in Table C related to Table A.
Which method creates the report that execute with the best performance?