Q.      A positive point charge Q is kept inside a neutral conducting shell (not in the centre). An external uniform electric field E is applied. Then

(a)    Force on Q due to E is zero.

(b)   Net force on Q is zero.

(c)    Net force acting on Q and conducting shell considered as a system is zero.

(d)   Net force acting on the shell due to E is zero.

                Please answer with proper reasoning?????