Consider the following relations : `R={(x,y)|x,y` are real numbers and x= wy for some rational number w} : `S={((m)/(n),(p)/(q))}` , m, n, p and q are integers such that `n, q ne 0 " and "qm = pn`}. Then :
A
R is an equivalence relation but S is not an equivalence relation
B
neither R nor S is an equivalence relation
C
S is an equivalence relation but R is not an equivalence relation
D
R and S both are equivalence relations
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