question content area mighty safe fire alarm is currently buying 50,000 motherboards from motherboard, inc., at a price of $65 per board. mighty safe is considering making its own boards. the costs to make the board are as follows: direct materials, $32 per unit; direct labor, $10 per unit; and variable factory overhead, $16 per unit. fixed costs for the plant would increase by $75,000. which option should be selected and why? a. make, $275,000 increase in profits b. buy, $275,000 increase in profits c. buy, $75,000 increase in profits d. make, $350,000 increase in profits