Which of the following statements is/are not an assumption of the kinetic theory for an ideal gas?

• A
  The duration of a collision is negligible as compared to the time between successive collisions.
• B
  The molecules have negligible attraction for each other.
• C
  The molecules have negligible momentum change on collision with the container walls.
• D
  There is no total kinetic energy change of the molecules on colliding with each other or with the walls of the container.