The middle box drop down menu is either plus, minus, or N/A

Any help with these questions is greatly appreciated!

In the following balance sheets, show the effect of this transaction. (Hint: If either assets or liabilities do not exist, please select "Not Applicable" and "NA" in the drop-down menus, and type in "O" (zero) in the numeric entry fields.) Cash Reserves Gov't Securities Wide Bank Reserves The Customer's Balance Sheet Demand deposit account f Dollars) Liabilities (Millions of Dollars) In the following balance sheets, show the effect of this transaction. (Hint: If either assets or liabilities do not exist, please select "Not Applicable" and "NA" in the drop-down menus, and type in "O" (zero) in the numeric entry fields.) Cash Reserves Gov't Securities Wide Bank Reserves The Customer's Balance Sheet Demand deposit account f Dollars) Liabilities (Millions of Dollars)