Comprehension \( \quad: \) A solid conducting sphere of radius \( a \) is surrounded by a thin...

Comprehension \( \quad: \) A solid conducting sphere of radius \( a \) is surrounded by a thin uncharged concentric conducting shell of radius \( 2 a \). A point charge \( q \) is placed at distance \( 4 a \) from common center of conducting sphere and shell. The inner sphere is then grounded.
Pick up the correct statement
(a) Charge on surface of inner sphere is non-uniformly distributed
(b) Charge on inner surface of outer shell is non-uniformly distributed
(c) Charge on outer surface of outer shell is non-uniformly distributed
(d) All the above statements are false