A capacitor of capacitance `C_1` is charged up to potential V and then connected in parallel to an uncharged capacitor or capacitance `C_2`. The final potential difference across each capacitor will be
A. `(C_2V)/(C_1+C_2)`
B. `(C_1V)/(C_1+C_2)`
C. `(1+(C_2)/(C_1))V`
D. `(1-(C_2)/(C_1))V`