A 400- $\mu$ F Capacitor Is Charged to 120 V and Is Then

Multiple Choice

A 40.0- $\mu$ F capacitor is charged to 120 V and is then connected across a 500- $\Omega$ resistor. The time constant for the circuit is

A) 4.0 ms.
B) 3.0 ms.
C) 2.0 ms.
D) 1.5 ms.
E) 1.0 ms.