Answer:
d
Step-by-step explanation:
When the volume of a gas is decreased, the number of gas particles in the same space decreases. The decreased space results in an increase in the number of collisions between the gas particles and the walls of the container. These collisions increase the pressure of the gas. The relationship between pressure, volume, and the number of gas particles is described by Boyle's Law, which states that the pressure of a gas is inversely proportional to its volume, as long as the temperature is constant.