Jim, a Massachusetts resident, slipped on a banana peel in the shop here grocery store located near his home. Jim wants to sue the store for the negligent failure to maintain its premises in a safe condition. Because shop here grocery store was incorporated in Delaware, Jim can sue in federal court under diversity of citizenship jurisdiction. In deciding the case, the federal court will rely upon a. Massachusetts negligence law b. Federal negligence law C. Delaware negligence law D. Either Massachusetts or federal negligence law, depending upon the value of the case