The correct solution is 4. To eliminate hyperextension of the spine, it may be necessary to modify the workstation. The most reasonable modification would be to utilize an elevated platform to minimize the height of the conveyor belt. Although both a pelvic stabilization program and an abdominal strengthening protocol would help improve core stability, the question provides sufficient information that the issue is more likely related to the height of the conveyor belt. As the patient cannot prevent spinal hyperextension, a review of body mechanics would not correct the problem.