Which three statements accurately describe IOS Firewall configurations？（）

• A、The IP inspection rule can be applied in the inbound direction on the secured interface
• B、The IP inspection rule can be applied in the outbound direction on the unsecured interface
• C、The ACL applied in the inbound direction on the unsecured interface should be an extendedACL.
• D、For temporary openings to be created dynamically by Cisco IOS Firewall， the access-list for thereturning traffic must be a standard ACL