Suppose a quantity \( x \) can be dimensionally represented in terms of \( M, L \) and \( T \), ...

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Suppose a quantity \( x \) can be dimensionally represented in terms of \( M, L \) and \( T \), that is, \( [x]=M^{a} L^{b} T^{c} \). The quantity mass
(a) can always be dimensionally represented in terms of
L, T and \( x \),
(b) can never be dimensoinally represented in terms of
\( \mathrm{L}, \mathrm{T} \) and \( x \),
(c) may be represented in terms of L, T and \( x \) if \( a=0 \),
(d) may be represented in terms of \( \mathrm{L}, \mathrm{T} \) and \( x \) if \( a \neq 0 \).
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