A charge q is placed at O in the cavity in a spherical uncharged conducter . Point S is outside the conducter . If q is displaced from O towards S (still remaining with in the cavity )

Question

$(a)\;electric\;field\;at\;S\;will\;increase\qquad(b)\;electric\;field\;at\;S\;will\;decrease\;\qquad(c)\;electric\;field\;at\;S\;will\;not\;change\qquad(d)\;can't\;say$