Positive Charge Q Is Placed on a Conducting Spherical Shell $\pi$

Positive charge Q is placed on a conducting spherical shell with inner radius R₁ and outer radius R₂.A point charge q is placed at the center of the cavity.The magnitude of the electric field at a point in the interior of the conductor a distance r from the center is:

A) 0
B)
C)
D) q/4 $\pi$ r²
E) Q/4 $\pi$ 11ef0090_ee73_9f24_bc85_2b95e03c99cb_TB6585_11r²