A . Select * From Emp Where EmpNO Not In('791','792','793')
B . Select * From Emp Where EmpNO !='791' AND EmpNO!='792' And EmpNO='793'
C . Select * From Emp Where EmpNO <>'791' AND EmpNO<>792' And EmpNO=<>793'
D . Select * From Emp Where EmpNO =!'791' AND EmpNO =!'792' And EmpNO =!'793'
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