Suppose a quantity y can be dimensionally represented in terms of M, L and T, that is [y] = [Ma Lb Tc] then M
(a) may be represented in terms of L, T and y if a = 0
(b) may be represented in terms of L, T and y if a ≠ 0
(c) can always be dimensionally represented in terms of L, T and y
(d) can never be dimensionally represented in terms of L, T and y.