Given the sets A={1,2,3,4}A = \{1, 2, 3, 4\}A={1,2,3,4}, B={3,4,5,6}B = \{3, 4, 5, 6\}B={3,4,5,6}, and C={1,3,5,7}C = \{1, 3, 5, 7\}C={1,3,5,7}, find the symmetric difference AΔBΔCA \Delta B \Delta CAΔBΔC.
{2,3,6,7}\{2, 3, 6, 7\}{2,3,6,7}
{1,2,5,6}\{1, 2, 5, 6\}{1,2,5,6}
{3,4,7}\{3, 4, 7\}{3,4,7}
{1,2,3,4,5,6,7}\{1, 2, 3, 4, 5, 6, 7\}{1,2,3,4,5,6,7}