Which Transact-SQL statement should you use?

You administer a Microsoft SQL Server 2012 database named ContosoDb. The database
contains a table named Suppliers and a column named IsActive in the Purchases schema.
You create a new user named ContosoUser in ContosoDb. ContosoUser has no
permissions to the Suppliers table. You need to ensure that ContosoUser can delete rows
that are not active from Suppliers. You also need to grant ContosoUser only the minimum
required permissions. Which Transact-SQL statement should you use?

A.
GRANT DELETE ON Purchases.Suppliers TO ContosoUser

B.
CREATE PROCEDURE Purchases.PurgeInactiveSuppliers
WITH EXECUTE AS USER = ‘dbo’
AS
DELETE FROM Purchases.Suppliers WHERE IsActive = 0
GO
GRANT EXECUTE ON Purchases.PurgelnactiveSuppliers TO ContosoUser

C.
GRANT SELECT ON Purchases.Suppliers TO ContosoUser

D.
CREATE PROCEDURE Purchases.PurgeInactiveSuppliers
AS
DELETE FROM Purchases.Suppliers WHERE IsActive = 0
GO
GRANT EXECUTE ON Purchases.PurgeInactiveSuppliers TO ContosoUser

Explanation:
Reference:
http://msdn.microsoft.com/en-us/library/ms188354.aspx
Reference:
http://msdn.microsoft.com/en-us/library/ms187926.aspx