Is the relation $R$ in the set ${1,2,3}$ given by $R={(1,2), (2,1)}$ symmetric, reflexive or transitive.

Question

$\begin{array}{1 1} \text{Only Symmetric} \\ \text{Only Transitive} \\ \text{Only Reflexive} \\ \text{Symmetric and Transitive, not Reflexive} \end{array} $