How can a developer help the business users to author rules in a way that improves performance?

A: Rewrite complex BAL rules as technical rules. B: The way in which rules are written have no impact on performance. C: Modify the BOM to remove the {this} placeholder to make the rules less verbose. D: Make sure that conditions that test a collection of objects come before simpler conditions, to reduce the number of objects that later conditions in the rule must test.