Two mirrors an inclined to each other at an angle $\theta$ It produces 5 images for a given object . Then,

Question

$(a)\;30^{\circ} \leq \theta \leq 60^{\circ} \\ (b)\;45 ^{\circ} \leq \theta \leq 60^{\circ} \\ (c)\;60^{\circ} \leq \theta \leq 72^{\circ} \\ (d)\;60^{\circ} \leq \theta \leq 90^{\circ} $