(c) 2+1-x, ix|si iffr) 2e, x>1 then r) is (a) neither continuous nor differentiable at x =_ (b) continuous but not differentiable atx=-1 (c) continuous as well

(C) 2+1-x, Ix|si Iffr) 2e, x>1 then r) is (a) neither continuous nor differentiable at x =_ (b) continuous but not differentiable atx=-1 (c) continuous as well as differentiable at x = 1 (d) continuous but not differentiable atx=1