Two bodies are shown in each of the systems below. Which statements about their free-body diagrams are correct?

Select all that apply

• Option A

  Interaction forces between two bodies must appear on the FBDs of different bodies.

• Option B

  A force exerted by one body on another should be shown on both FBDs with the same direction.

• Option C

  An isolated-body FBD contains only forces acting on that chosen body.

• Option D

  For a string-pulley system, tension forces act along the string.