单项选择题

A.A policy should be created. The policy targets the name of the stored procedure that is evaluated on demand. 
B.A policy should be created. The policy targets the name of the stored procedure that is evaluated on change. 
C.A condition should be created. The condition targets the name of the stored procedure that is evaluated on change 
D.A condition should be created. The condition targets the name of stored procedure that is evaluated on demand.