The Voltage Across and the Current Through a Single Circuit

Multiple Choice

The voltage across and the current through a single circuit element connected to an ac generator are shown in the graph.
-Which one of the following statements concerning this circuit element is true?

A) The element is a resistor.
B) The element is a capacitor.
C) The element is an inductor.
D) The element could be a resistor or an inductor.
E) The element could be an inductor or a capacitor.