Deposit slips are issued by banks and sold to depositors.

C. Commercial paper is issued by companies and large banks for short-term financing in the debt market.

D. Repurchase agreements are mainly issued by banks, secured by treasury bills, and financed by companies and other banks through loans, in which the issuing banks explicitly agree to repay debts (repurchase funds) in the near future.

E. Federal funds are overnight loans between banks.