In the reported figure, a capacitor is formed by placing a compound dielectric between the plates of parallel plate capacitor. The expression for the capacity of the said capacitor will be :
(Given area of plate = A)

(1) \(\frac{15}{34} \frac{K\varepsilon_0A}{d}\)
(2) \(\frac{15}{6} \frac{K\varepsilon_0A}{d}\)
(3) \(\frac{25}{6} \frac{K\varepsilon_0A}{d}\)
(4) \(\frac{9}{6} \frac{K\varepsilon_0A}{d}\)