The formula to calculate funds from unknown sources is:
A. Assets-Liabilities-Prior Year's Net Worth+Living Expenses-Funds from Known Sources
B. Assets-Liabilities-Prior Year's Net Worth-Living Expenses-Funds from Unknown Sources
C. Assets-Liabilities-Prior Year's Net Worth+Living Expenses+Funds from Unknown Sources
D. Assets-Liabilities-Prior Year's Net Worth-Living Expenses+Funds from Unknown Sources
Answer: A