Four identical thin, square metal sheets, \( S_{1} \), \( S_{2} \), \( S_{3} \) and \( S_{4} \), each of side \( a \) are kept parallel to each other with equal distance \( d ( \ll a ) \) between them, as shown in the figure. Let \( C_{0}=\varepsilon_{0} a^{2} / d \), where \( \varepsilon_{0} \) is the permittivity of free space.
Match the quantities mentioned in List-I with their values in List-II and choose the correct option.
