\[AB=0\], if and only if [MNR 1981; Karnataka CET 1993]

1.	\[AB=0\], if and only if [MNR 1981; Karnataka CET 1993]
A.	\[A\ne O,B=O\]
B.	\[A=O,B\ne O\]
C.	\[A=O\]or \[B=O\]
D.	None of these
Answer» E.

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\[AB=0\], if and only if [MNR 1981; Karnataka CET 1993]

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