The managers of Kenforest Grocers are trying to determine the company's optimal capital budget for the upcoming year. Kenforest is considering projects A, B, C, D, and E and has determined the marginal cost of capital schedule given below: Net Project Investment IRR A $200,000 13.9% B $300,000 14.2% C $300,000 13.8% D $100,000 15.5% E $150,000 13.0% Marginal Cost of Capital 0 - $500,000 12.8% Over $500,000 - $800,000 13.4% Over $800,000 - $1,000,000 13.8% Over $1,000,000 15% What is the firm's optimal capital budget? A. Accept all projects. B. Accept projects A, B, C, and D only. C. Accept projects A and B only. D. Accept projects B and D only. O E. Accept projects A, B, and D only