7. Prove with reasons why the following are not groups (A) ★ 0 1 2 * 3 5 0 1 2 0 1 2 1 2 0 2 1 0 (C) 35 53 3 5 (B) 0 1 2 0 1 2 3 3 1 2 0 1302 203 1 0 1 2 30 213 (D) 012 0 1 2 201 1 20

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