pls help

ABC Company manufactures sleeping bags. It has the capacity to produce 6,000 sleeping bags a year, but only produced 5,700 bags that could be sold because 5% of the bags had zippers that were defective. Under the theory of constraints, which of the following would be the most likely action to eliminate the problem of defective zippers? Purchase a better-quality zipper. O Redesign the sleeping bag to have a longer zipper. O Replace sleeping bag production with a product that does not have defects. O Outsource the installation of zippers