Given the following premises, which of the following can be taken as justified by the rule given in a SINGLE step? ~MS ~M (MvH)v~S Question 21 options: MvH, from 3, simplification H, from 2, 3, disjunctive syllogism ~S, from 1, 2, Modus Ponens Mv(Hv~S), from 3, Associativity