The last one because it makes sense
No detainee may be interrogated by contractor personnel.Appropriately qualified and trained DoD personnel (military or civilian) are available to oversee the contractor's performance and to ensure that contractor personnel do not perform activities that are prohibited under this section.
In the congressional proposal method, two-thirds of both chambers of Congress must propose an amendment. The proposed amendment must then be ratified by three-fourths of state conventions or state legislatures, as chosen by Congress. Diagram of each form of proposing and ratifying an amendment.