You are operating a gold mine that will extract 10 tons of gold per year for the next twelve years. You expect to sell the extracted gold for a per-ton price of $60 million every year for the next six years. For the final six years, you expect to sell the extracted gold for an uncertain per-ton market price of either $30M (50 percent probability) or $90M (50 percent probability). Assume that the cost of extracting each ton of gold is $45 million for all years. a) Suppose that the risk-free rate is 3 percent and the market risk premium is 5 percent. Retrieve the beta of gold by looking up the primary gold exchange traded fund (symbol: GLD) on Yahoo! Finance. What is the expected return on gold