A bank has checkable deposits of​ $1,000,000, loans of​ $600,000, and government securities of​ $400,000. If the required reserve ratio is 5​ percent, the amount of required reserves is A. ​$20,000. B. ​$50,000. C. ​$80,000. D. ​$30,000. E. ​$100,000.