The number of one-to-one functions from {1, 2, 3} to {1, 2, 3, 4, 5} i

1.	The number of one-to-one functions from {1, 2, 3} to {1, 2, 3, 4, 5} is
A.	125
B.	243
C.	10
D.	60
Answer» E.

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