From 2017-2019, the primary source of external funds for corporations was Select one: O A. bonds. O B. loans. O C. stocks. O D. commercial paper.Which of the following statements is correct? Select one: A. Defensive open market operations are carried out to change monetary policy. OB. Defensive open market operations are usually carried out through outright purchases or sales. O C. Dynamic open market operations are carried out to offset fluctuations in the monetary base. O D. Defensive open market purchases are conducted through repurchase agreements