Q. Suppose Km={P∈S_m|, |P| is odd prime}. Determine the set for which m≥3 Km a subgroup of S_m.

• {3, 5, 7, 11, 13, …}
• {-14, -8, -3, 0, 3, 8, 14}
• {2, 4, 6, 8, 10, 12}
• {12, 25, 56, 78, 134,…}

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