A customer's balance sheet shows the following:
Cash: $130,000
Securities: 0
Automobile: $25,000
Home: $300,000
Unsecured Credit Line (Due This Year): $5,000
Credit Cards Payable: $5,000
Auto Loan Payable: $15,000
Mortgage Payable: $100,000
Assuming this customer's income exceeds expenses and that the customer will need a $20,000 emergency cash reserve, the amount that is available for investment in a portfolio is:
A. $5,000
B. $50,000
C. $100,000
D. $125,000