choose the best answer below: In cases where a system element is contracted out to a supplier prior to design work being initiated, it is important that the acquirer Give the supplier a full 90 days to submit proposed interface revision statements Clearly addresses how each supplier will support, participate in, and comply with the interface management activities throughout the development of the system Identify at least one back-up supplier that can step in and take over if the first supplier fails to deliver the system element as specified Include in the contract the need for the supplier to develop a complete interface specification Give the supplier the design freedom to come up with a winning solution