Determine if each of the following functions from {a,b, c, d} to itself is one-to-one and/or onto. Check ALL correct answers. (a) f(a) = d, f(b) = a, f(c) = c, f(d) = b A. onto. O B. neither one-to-one nor onto. O C. one-to-one. f(a) = c, f(b) = d, f(c) = a A. neither one-to-one nor onto. O B. onto. O C. one-to-one. f(a) = b, f(b) = a, f(c) = c, f(d) = d O A. neither one-to-one nor onto. O B. onto. OC. one-to-one.

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