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Let A = 1, 2, 3, 4 and f : A A satisfy f(1) = 2, f(2) = 3, f(3) = 4, f(4) = 1 . Suppose g : A A satisfies g(1) = 3 and fog = gof , then g =

Options

  1. A(1, 3), (2, 1), (3, 2), (4, 4)
  2. B(1, 3), (2, 4), (3, 1), (4, 2)
  3. C(1, 3), (2, 2), (3, 4), (4, 3)
  4. D(1, 3), (2, 4), (3, 2), (4, 1)

Correct answer

B. (1, 3), (2, 4), (3, 1), (4, 2)

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