I need an explanation

43) Refer to Scenario 10.1. If the required reserve ratio were changed to 10%, total loans of Bank No. 2 will change to A) 77,400 . B) 81,000 . C) 85,000 . D) 90,000 . SCENARIO 10.1: The following table shows the changes in deposits, reserves, and loans of 4 banks as a result of a $100,000 initial deposit in Bank No. 1. Assume all banks are loaned up