Final answer:
When the volume of a gas is decreased by a factor of three while maintaining constant pressure, the absolute temperature of the gas remains the same. Therefore, the answer is a. It would remain the same.
Step-by-step explanation:
The volume of a gas is inversely proportional to its pressure, as long as the temperature remains constant. This relationship is described by Boyle's Law. When the volume of a gas is decreased by a factor of three while maintaining constant pressure, the absolute temperature of the gas remains the same. Therefore, option a. It would remain the same is the correct answer.