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

Multiple Choice

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

A) leads the voltage by $90 ^ { \circ }$ .
B) lags the voltage by $90 ^ { \circ }$ .
C) is in phase with the voltage.
D) lags the voltage by $45 ^ { \circ }$ .
E) leads the voltage by $45 ^ { \circ }$ .