A parallel plate capacitor with air between the plates has a capacitance of $8 pF (1pF = 10^{−12} F)$. What will be the capacitance if the distance between the plates is reduced by half, and the space between them is filled with a substance of dielectric constant $6$?

Question

$\begin{array}{1 1} 96\;pF \\ 67\;pF \\ 45\;pF \\ 27\;pF \end{array}$