A mapping f : X Y is one one if __________ – McqOptions

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1.	A mapping f : X Y is one one if __________
A.	f(x<sub>1</sub>) f(x<sub>2</sub>) for all x<sub>1</sub>, x<sub>2</sub> in X
B.	If f(x<sub>1</sub>) = f(x<sub>2</sub>) then x<sub>1</sub> = x<sub>2</sub> for all x<sub>1</sub>, x<sub>2</sub> in X
C.	f(x<sub>1</sub>) = f(x<sub>2</sub>) for all x<sub>1</sub>, x<sub>2</sub> in X
D.	None of the mentioned
Answer» C. f(x<sub>1</sub>) = f(x<sub>2</sub>) for all x<sub>1</sub>, x<sub>2</sub> in X

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