Recall Application 1, "Beyond Purchasing Treasury Securities," to Answer the Following

Recall Application 1, "Beyond Purchasing Treasury Securities," to answer the following questions:
-According to the application, which of the following was a way for the Fed to channel more funds to banks to encourage bank lending?

A) The Fed held mortgage backed securities.
B) The Fed guaranteed all the loans that the banks made to large corporations.
C) The Fed owned all the banks.
D) All of the above are correct.