(Choose 1 answer)
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Let f: N→ Z be the function defined as follows n 2 n² +12n is even n is odd f(n) =
A. f is onto but not one-to-one.
B. f is one-to-one but not onto.
C. f is neither one-to-one nor onto.
D. f is both one-to-one and onto.
Choose the correct answer.
FUO