Suppose you have $10,000 in cash and you decide to borrow another $10,000 at a 8% interest rate to invest in the stock market. You invest the entire $20,000 in an exchange-traded fund (ETF) with a 10% expected return and a 20% volatility. The expected return on your of your investment is closest to O A. 13% OB. 7% OC. 12% OD. 16%