In the figure given below : <br> $\angle BCD = \angle {ADC} $ and $\angle ACB = \angle BDA$, then $\Delta A$ is_____ $\angle B$ <br>

Question

$\begin{array}{1 1} (a)\; \text{greater than} \\ (b)\; \text{lesser than} \\ (c)\; \text{equal to} \\ (d)\; \text{cannot be determined} \end{array}$