IF_SET_A_X_B=B_X_A_THEN_WHICH_OF_THE_FOLLOWING_SETS_MAY_SATISFY?$

• A. A={1, 2, 3} , B={1, 2, 3, 4}
• B. A={1, 2} , B={2, 1}
• C. A={1, 2, 3} , B={2, 3, 4}
• D. None of the mentioned