A capacitor of unknown capacitance \(C\) is initially charged to a potential difference \(V_0\) and then allowed to discharge through a resistor of known resistance \(R\). A student records the potential difference \(V\) across the capacitor as a function of elapsed time \(t\) using a voltmeter with a known, finite internal resistance \(R_V\) connected in parallel with the capacitor. To determine \(C\), the student linearizes the data by plotting \(\ln V\) on the vertical axis versus \(t\) on the horizontal axis, obtaining a best-fit line with a slope of magnitude \(S\). Which of the following expressions correctly yields the capacitance \(C\) in terms of \(S\), \(R\), and \(R_V\)?