Jeanine wants to perform an experiment on a group of teenagers involving an experimental new drug. She is not granted permission to conduct her study. What is most likely the problem that Jeanine is having with performing her experiment?

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.