i need answers in 10 questions

If the Trading Desk is instructed to increase the federal funds rate, its traders securities dealers, and those dealers back account balances are OA buy Treasury securities from reduced OB sell Treasury securities to increased OC buy Treasury securities from increased OD. sell Treasury securities to reduced Which of the following statements is NOT correct? O A ETFs have very high expense ratios. OB ETFs differ from most open-end and closed-end funds in that they are not actively managed OC. One disadvantage of ETFs is that each purchase of additional shares must be done through the exchange where they are traded OD. Exchange-traded funds (ETFs) are designed to mimic particular stock indexes and are traded on a stock exchange