Which of the following global has return type ‚Äö√Ñ√∂‚à ö√ë‚à ö‚â§numeric‚Äö√Ñ√∂‚à ö√ë‚à ö¬• ?$

• A. @@ERROR
• B. @@MAX_CONNECTIONS
• C. @@CPU_BUSY
• D. @@IDENTITY