A blacksmith has five iron articles A, B, C, D and E, each having a different weight.
(i) A weight twice as much as B.
(ii) B weights four and a half times as much as C.
(iii) C weights half as much as D.
(iv) D weighs half as much as E.
(v) E weighs less than A but more than C.
Which of the following is the lightest?