You want to enforce a company’s business policy on several objects by using a singlepolicy function.  Which two types of policies can be assigned to the policy_type argument in the dbms_rls.add_policy procedure to achieve the above objective？（）

• A、DBMS_RLS.STATIC
• B、DBMS_RLS.DYNAMIC
• C、DBMS_RLS.SHARED_STATIC
• D、DBMS_RLS.CONTEXT_SENSITIVE
• E、DBMS_RLS.SHARED_CONTEXT_SENSITIVE