Question text Let A = 12" In E {0, 1, 2, 3}} and B = {3n | n E {0, 1, 2, 3} }. Which one of the following is the set A U B? Select one: C a . {0, 1, 2, 3, 4, 5, 6, 7, 8,9} b. {0, 1, 2, 3, 4, 6, 8,9} C C. {1, 2, 3, 4, 6, 8,9} {0, 2, 3, 4, 6, 8,9}