B D Which of the following about Sn are correct? (i): Each element of Sn has an order n (ii): There is an element of S, which has an order = n! for any n > 1. (iii): The order of Sn is n! (iv): Sn is always non-abelian for any n > 1. (v): S₁ has at least two subgroups for n > 1. (iv), (v) (i), (iii), (iv), (v) (i), (iii), (v) (iii), (iv), (v) (i), (iii) ...

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