The Required Rate of Return on Montreal Computing Power's Equity

The required rate of return on Montreal Computing Power's equity is 15% and the yield on their debt is 7%.There are no taxes and all cash flows are perpetuities.If the value of the debt is $1,000 and value of the equity is $1,000, what level of earnings must Montreal Computing Power earn in order to support the current valuation?

A) $290
B) $300
C) $330
D) $220