The Gay-Lussac's Law Observation of Increased Pressure Due to Increased

The Gay-Lussac's law observation of increased pressure due to increased temperature would be explained using kinetic theory in the following way: The pressure must increase because ________.

A) the molecules will strike the container walls less often
B) the molecules will strike the container walls more often
C) the molecules can move slower
D) the molecules can increase in size