A man who works and resides in State A is injured seriously while using a defective lawn mower. The mower was made in State B where the manufacturer has a large manufacturing plant. The manufacturer is incorporated in State C where it has a registered agent and receives lawsuits and service of process.The manufacturer does business in State A but is headquartered, controlled and has its "nerve center" in State R$.$ The man sues the manufacturer in a federal court in State A on a products liability tort claim. The complaint alleges serious and permanent injuries, a permanent disability, and damages in excess of $$75,000.$ Leaving aside any potential questions of venue, is there subject matter jurisdictional authority for the case to be filed in State A and what is the reason for or against it$?$