单项选择题
Assuming PUBLIC has been granted all privileges on table T1, which of the following statements would continue to permit any user to add rows to table T1, but not remove them?（）
A.REVOKE DROP ON t1 FROM PUBLIC
B.REVOKE UPDATE ON t1 FROM PUBLIC
C.REVOKE DELETE ON t1 FROM PUBLIC
D.REVOKE CONTROL ON t1 FROM PUBLIC
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