Before the 1960s:

A.)over half of the sources of bank funds were obtained through checkable deposits that by law could not pay any interest.

B.)banks mostly borrowed from other banks to meet their reserve needs.

C.)both over half of the sources of bank funds were obtained through checkable deposits that by law could not pay any interest and banks mostly borrowed from other banks to meet their reserve needs occurred.

D.)neither over half of the sources of bank funds were obtained through checkable deposits that by law could not pay any interest nor banks mostly borrowed from other banks to meet their reserve needs occurred.