A series combination of `N_(1)` capacitors (each of capacity `C_(1)`) is charged to potential difference 3V. Another parallel combination of `N_(2)` capacitors (each of capacity `C_(2)`) is charged to potential difference V. The total energy stored in both the combinations is same, The value of `C_(1)` in terms of `C_(2)` is
A. `(C_(2)N_(1)N_(2))/(9)`
B. `(C_(2)N_(1)^(2)N_(2)^(2))/(9)`
C. `(C_(2)N_(1))/(9N_(2))`
D. `(C_(2)N_(2))/(9N_(1))`