A metallic shell has a point charge ‘q’ kept inside its cavity. Which one of the following diagrams correctly represents electric lines of forces

Given data:

Charge inside cavity

Electric line of force follows as the mentioned options

Concepts used: Electric field

Explanation:

Since the electric field inside the conductor is zero, there are no lines of force in the shaded area. Also, a $-q$ charge  gets induced on the inner surface of the conductor due to the presence of the positive charge q in the cavity and a $+q$ charge on the outermost surface(this will be distributed on the outer surface uniformly).