A $4 \mu F$ capacitor and a 2.5MW resistor are connected in series with a 12V battery. Find the time after which the potential difference across the capacitor is 3 times the potential difference across the resistor.

Question

$\begin {array} {1 1} (A)\;20\: In(2) & \quad (B)\;In(2) \\ (C)\;5\: In(2) & \quad (D)\;10\: In(2) \end {array}$