Cathy Rogers deposits $200 in currency in her checking account at a bank. This deposit is treated as:

Cathy Rogers deposits $200 in currency in her checking account at a bank. This deposit is treated as: 1) A subtraction of $200 from the money supply because the $200 in currency is no longer in circulation 2) An addition of $200 to the money supply because of the creation of a checkable deposit of $200 3) An addition of $200 to the money supply because the bank holds $200 in currency and the checking account has been increased by $200 4) No change in the money supply because the $200 in currency has been converted to a $200 increase in checkable deposits