Study the following information carefully and answer the questions given below:
(i) A, B, C, D, E, F, G and H are eight students, each having a different height.
(ii) Dis shorter than A but taller than G.
(iii) E is taller than H but shorter than C.
(iv) B is shorter than D but taller than F.
(v) C is shorter than G.
(vi) G is not as tall as F.
Which of the following is redundant to answer all the above questions?

Options

A. (ii) none
B. (ii) and (iii) only
C. (iii) and (iv) only
D. (ii) and (v) only

Answer

D

Explanation

By analysing the given information, the descending order of height of the eight students is as follows:
From (ii), `A gt D gt G`.
From (iii), `C gt E gt H`.
From (vi), `D gt B gt F`.
From (v), `G gt C`
From (vi), `F gt G`.
Combining (ii), (iii), (iv), (v), & (vi), we get

All are necessary to answer the above question.