To ensure that integrity is attainted through the Clark and Wilson model, certain rules are needed.
These rules are:

A.
Processing rules and enforcement rules.

B.
Integrity-bouncing rules.

C.
Certification rules and enforcement rules.

D.
Certification rules and general rules.

Explanation:
To ensure that integrity is attained and preserved, Clark and Wilson assert, certain integritymonitoring and integrity-preserving rules are needed. Integrity-monitoring rules are called
certification rules, and integrity-preserving rules are called enforcement rules.