(c) $105^{\circ}$ Given that $C F \| A B$ and $\angle A B C=85^{\circ}$. $\therefore \angle B C F=85^{\circ} \Rightarrow \angle B C E=105^{\circ} \Rightarrow \angle B A D=105^{\circ} \quad$ [Exterior angle $=$ Interior opposite angle]
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