Let Z denote the set of positive integers. Define a relation R on Z+xZ+ by (m, n)R(s, t) iff gcd(m, n) = gcd(s, t). The relation Ris Select one: a. Reflexive, Not Symmetric, Transitive b. Not Reflexive, Not Symmetric, Not Transitive c. Reflexive, Symmetric, Not Transitive d. Reflexive, Not Symmetric, Not Transitive e. Reflexive, Symmetric, Transitive

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