Two capacitors having capacitances $C_1\: and \: C_2$ are charged with 120 V and 200 V batteries respectively. When they are connected in parallel now, it is found that the potential on each one of them is zero. Then

Question

$\begin {array} {1 1} (1)\;5C_1 = 3C_2 & \quad (2)\;8C_1 = 5C_2 \\ (3)\;9C_1 = 5C_2 & \quad (4)\;3C_1 = 5C_2 \end {array}$