Select the correct answer.

What does the kinetic theory state about the relationship between the speed and temperature of gas molecules?

A. As the temperature increases, the speed of gas molecules remains constant.
B. As the temperature increases, the speed of gas molecules decreases.
C. As the temperature increases, the speed of gas molecules increases.
D. As the speed of gas molecules increases, the temperature becomes constant.
E. As the temperature decreases, the speed of gas molecules increases.