Let $\mathrm{R}=\left\{\left(3, 3\right), \left(6, 6\right), \left(9, 9\right), \left(12, 12\right), \left(6, 12\right), \left(3, 9\right), \left(3, 12\right), \left(3, 6\right)\right\}$

be a relation on the set $\mathrm{A}=\left\{3, 6, 9, 12\right\}.$ The relation is

Here $\left(3, 3\right), \left(6, 6\right), \left(9, 9\right), \left(12, 12\right)$, [Reflexive];

$\left(3, 6\right), \left(6, 12\right), \left(3, 12\right), \left[\mathrm{Transitive}\right].$

Hence, reflexive and transitive only.