Suppose a quantity can be dimensionally represented in terms M, L...

Options

1. Amaybe represented in terms of $L, T$ and $y$ if $a = 0$
2. Bmaybe represented in terms of $L, T$ and $y$ if $\text{a} \ne 0$
3. CCan always be dimensionally represented in terms of $L, T$ and $y$
4. DCan never be dimensionally represented in terms of $L, T$ and $y$