While swapping 2 numbers what precautions to be taken care?

1.	While swapping 2 numbers what precautions to be taken care?
A.	This code doesn t swap 2 numbers
B.	All data types are accepted except for (char *)
C.	Data type should be either of short, int and long
D.	Data type should be either of float and double
E.	None of these
Answer» E. None of these

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While swapping 2 numbers what precautions to be taken care?

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