Let $\triangle , \nabla \in \{ \wedge , \vee \}$ be such that $( \mathrm { p } \rightarrow \mathrm { q } ) \triangle ( \mathrm { p } \nabla \mathrm { q } )$ is a tautology. Then\\
(1) $\triangle = \wedge , \nabla = \vee$\\
(2) $\triangle = \vee , \nabla = \wedge$\\
(3) $\triangle = \vee , \nabla = \vee$\\
(4) $\triangle = \wedge , \nabla = \wedge$