AIIMS 2019 Physics Capacitors MCQ Question

After the switch is opened at $t = \infty$, the capacitor will discharge according to the formula $Q(t) = Q_0 e^{-t/RC}$, where $Q_0$ is the initial charge, $R$ is the resistance, and $C$ is the capacitance. Given that the charge after 1 second is $25e^{-10} \, \mu C$, this indicates that the initial charge $Q_0$ was set to yield this value at $t = 1 \, s$ with the specified $R$ and $C$ values. The other options (A, C, D) do not match the calculated discharge value, as they represent incorrect initial conditions or time constants.