According to the Ideal Gas Law, which states that \( PV = nRT \) (where \( P \) is pressure, \( V \) is volume, \( n \) is the number of moles of gas, \( R \) is the gas constant, and \( T \) is temperature), if the volume of the container is held constant and the amount of gas does not change, an increase in pressure will result in a corresponding increase in temperature.
Since pressure and temperature are directly proportional when the volume remains constant (as given by the rearranged form \( T = \frac{PV}{nR} \)), if pressure increases, temperature must also increase to maintain the equality.
Therefore, the most likely outcome for the temperature is:
A. The temperature will rise at the same rate with the increase in pressure.