This equation is known as the ideal gas law, and it can be used to predict the behavior of many gases at relatively low pressure.

from this equation, you can see that as the temperature of a gas increases,
a) the pressure of the gas increases.
b) the number of moles of gas will go down.
eliminate
c) either the pressure of the gas, the volume of the gas, or both, will increase.
d) either the pressure of the gas, the volume of the gas, or both, will decrease.