Privatizing the U.S. Money Supply, economics homework help

Privatizing the U.S. Money Supply

Would it be possible to privatize the money supply in the United States completely? In doing so, what would be the primary obstacle to overcome in implementing such a policy?

Then respond to this question: jimmyg has $100 in cash in My pocket… I go to my bank and deposit the $100 in cash into my checking account.

After my deposit transaction… Did the supply of money go up or down or ?

Please explain based on your study of this module.