Which statement best describes the relationships between AAA function and TACACS+， RADIUS based onthe exhibit shown？（）

• A、TACACS+ - P4S1 and P4S4RADIUS - P4S2 and P4S3
• B、TACACS+ - P4S2 and P4S4RADIUS - P4S1 and P4S3
• C、TACACS+ - P4S1 and P4S3Actual RADIUS - P4S2 and P4S4
• D、TACACS+ - P4S2 and P4S3RADIUS - P4S1 and P4S4