d
\(\begin{array}{l}
\Pr essure,\,p = \frac{{force}}{{area}} = \frac{{mass\, \times \,acceleration}}{{area}}\\
\therefore \,\left[ P \right] = \frac{{{M^1}L{T^{ - 2}}}}{{{L^2}}} = \left[ {{M^1}{L^{ - 1}}{T^{ - 2}}} \right] = \,{M^a}{L^b}{T^c}\\
\therefore \,a = 1,\,b = - 1,\,c = - 2.
\end{array}\)