A firm is considering an average-risk project with an IRR of 6%. The firm's cost of debt (KD) is 5%, its cost of equity

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A firm is considering an average-risk project with an IRR of 6%.
The firm's cost of debt (KD) is 5%, its cost of equity (KE) is 12%,
and its tax rate (t) is 20%. The target debt ratio (D/(D+E)) for
the project, in market values, is 0.5. The firm should
accept the project only if it can be completely financed with
equity.
accept the project only if it can be completely financed with
debt.
accept the project regardless of the financing method.
reject the project regardless of the financing method.