From the options below, select those sets which are functions from {1,2,3} to {7,8}. {(2,7), (1,8)} {(2, 7), (1,7), (3, 8), (2,8)} ○ {(1,7), (3, 7), (1,8)} {(3, 8), (2, 8), (1,7)} ONone of the above

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