In following number series, either one term is missing or is incorrect. Choose correct answer from options - Choose correct answer from options 1, 2, 5, 10, 17, 28
A blacksmith has five iron articles A, B, C, D and E, each having a different weight. (i) A weights 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 weights half as much as E. (v) E weights less than A but more than C.
Which of the following is the lightest in weight ?