Which statement most accurately describes the implementation of a SQL Access Advisor recommendation？（）  

• A、 SQL Access Advisor recommendations are automatically implemented.
• B、 Individual SQL Access Advisor recommendations can be scheduled for implementation.
• C、 All SQL Access Advisor recommendations for a specific task must be implemented at the same time.
• D、 SQL Access Advisor recommendations are automatically scheduled for implementation during the maintenance window.
• E、 None of the above.