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If X = { 1 , 2 , 3} and Y = {0 , 1} and ...

If X = { 1 , 2 , 3} and Y = {0 , 1} and f : `X to Y` defined by f = { (1 , 1) , (2 , 1) , (3, 0) } , then f is

A

one -to-one but onto

B

onto but not one-to-one

C

one-to-one and onto

D

neither one-to-one nor into.

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Verified by Experts

The correct Answer is:
B
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