X, Y, R, S are 4 positive integer, R<S, X^r = Y^s
i. X is a multiple of Y

ii Y is a multiple of X

iii.S is a multiple of R

A. Only i

B. Only ii

C. Only iii

D. ii & iii

E. i&ii

We could take 64 as an example for this question. Can any other example be taken? The ans is A