Answer
$\angle CAB \ne \angle BAD$
Work Step by Step
Angle of depression is $\angle BAD$ and $AD||CB$
then, $\angle CAD = 180^{\circ} -\angle ACB = 90^{\circ}$
$\angle CAD = \angle BAD + \angle CAB$
$\angle CAB = \angle CAD - \angle BAD $
$\angle CAB = 90^{\circ} - angle$ $ of$ $ depression$
therefore $\angle CAB \ne \angle BAD$