For the Circuit Shown in the Figure, C = 13

Multiple Choice

For the circuit shown in the figure, C = 13 µF and R = 7.6 MΩ. Initially the switch S is open with the capacitor charged to a voltage of 80 V. The switch is then closed at time t = 0.00 s. What is the charge on the capacitor 40 s after closing the switch?

A) 3300 µC
B) 3100 µC
C) 2900 µC
D) 2700 µC
E) 2500 µC