Consider the following relations
R ={(x, y) | x, y are real numbers and x = wy for some rational number w}
- = {(m/n, p/q) | m, n, p and q are integers such that n, q ≠ 0 and qm = pn}. Then,
(a) R is an equivalence relation but * is not an equivalence relation
(b) Neither R nor * is an equivalence relation
(c) * is an equivalence relation but R is not an equivalence relation
(d) R and * both are equivalence relations
