In the circuit shown below, the key is pressed at time t = 0 . Which of the following statements (s) is (are) true?
A. The voltmeter displays -5 V as soon as the key is pressed, and displays +5 V after a long time
B. The voltmeter will display 0 V at time t = ln 2 seconds
C. The current in the ammeter becomes 1/e of the initial value after 1 second
D. The current in the ammeter becomes zero after a long time
