A firm is considering three possible one-year investments, which we will name X, Y, and Z.

Investment X would cost $10 million now and would return $11 million next year, for a net gain of $1 million.

Investment Y would cost $100 million now and would return $105 million next year, for a net gain of $5 million.

Investment Z would cost $1 million now and would return $1.2 million next year, for a net gain of $200,000.

The firm currently has $150 million of cash on hand that it can loan out at 15 percent interest. Which of the three possible investments should it undertake?

• X only

• Y only

• Z only

• X and Y

• X and Z

• X, Y, and Z

• None