Answer:
Commercial banks, thrift institutions
Explanation:
M1 money supply can be regarded as one that includes physical currency. It encompass monies in liquid form such as demand deposit as well as cash and some checkable deposit. M1 money supply are regarded as liiqud money , since the currency as well as asset can be converted to cash very quickly. Some of the financial institutions offer checkable deposits included within the M1 money supply are Commercial banks, thrift institutions in which there is demand deposit account which allows checks or drafts to be written.