calculate the money creation in the U.S. banking system with required reserve ratio at 0.20 in each of the following cases: (a) Sam's parents wired him $100,000 from Japan. (b) Sam won $100,000 from Texas lottery. (c) Sam found $100,000 worth collectable coins underground at his house. (d) Sam got a $100,000 check which is issued in a U.S. bank from his aunt as gift.