Pressure versus temperature graph of an ideal gas at constant volume V is shown by a straight line A. Now mass of the gas is doubled and volume is halved , then the corresponding pressure versus temperature will be shown by the line-

A
B
C
D
So, at constant volume, the pressure versus temperature graph is a straight line passing through the origin with a slope . As the mass is doubled & volume is halved, therefore slope becomes four times.
Therefore, the pressure versus temperature graph will be shown by line B.