A Pure Capacitor Is Connected to an Ac Power Supply $90 ^ { \circ }$

Multiple Choice

A pure capacitor is connected to an ac power supply. In this circuit, the current

A) lags the voltage by $90 ^ { \circ }$ .
B) leads the voltage by $90 ^ { \circ }$ .
C) is in phase with the voltage.
D) lags the voltage by $180 ^ { \circ }$ .
E) None of the given answers are correct.