Today's technology allows mobile device makers to make smartphones more socially connected now than at any time in their history.

(A)
smartphones more socially connected now than at any time in their

(B)
smartphones that are more socially connected than they were at any time in their

(C)
smartphones that are more socially connected than those at any other time in

(D)
more socially connected smartphones than those at any other time in their

(E)
more socially connected smartphones now than at any time in