You administer a Microsoft SQL Server 2012 database named Contoso that contains a single userdefined database role namedBillingUsers.
All objects in Contoso are in the dbo schema.
You need to grant EXECUTE permission for all stored procedures in Contoso to BillingUsers.
Which Transact-SQL statement should you use?
A.
CREATE ROLE proc_caller
GRANT EXECUTE ON Schema: : dbo TO proc_caller
ALTER ROLE proc_caller ADD MEMBER BillingUsers
B.
GRANT EXECUTE ON INFORMATION_SCHEMA.ROUTINES TO BillingUsers
C.
EXEC sp_addrolemember ‘executor’, ‘BillingUsers’
D.
CREATE ROLE proc_caller
GRANT EXECUTE ON ALL PROCEDURES TO proc_caller
ALTER MEMBER BillingUsers ADD TO ROLE proc_caller