In terms of age, we have :
E < B, C < A, A < E, A < D
So, we have : C < A < E < B < A < D.
In terms of height, we have :
B < C, D < C, E < C, D < A
B is shorter than C. So, B is not the tallest. Thus, (i) is correct.
B and E are shorter than C. So, it cannot be conclude that B is shorter to E. Thus, (ii) is incorrect.
A single definite order of heights cannot be obtained from the given information. So, (iii) is incorrect.