A Gas Can Be Characterized by Its Volume

A gas can be characterized by its volume . Which of the following parameters listed below are indirectly related to the volume of an ideal gas?
I. Pressure (if the mole amount and temperature are held constant) .
II. Mole amount of gas (if the pressure and temperature are held constant) .
III. Temperature (if the pressure and the mole amount are held constant) .

A) I only
B) II only
C) III only
D) II and III
E) All of these