The Queens Fumiture Company produces beds and desks for college students. Each bed requires 3 hours of carpentry and 2 hours of varnishing. Each desk requires 2 hours of carpentry and 4 hours of varnishing. There are 18 hours of carpentry time and 20 hours of varnishing time available. Beds generate $15 of profit per unit and desks generate $20 of profit per unit. What is the objective function? a. P=3x+2y b. P=2x+4y c. P=15x+20y d. P=3x+4y 4. Refer to the data in question 3. Which is the complete set of constraints? a. 2x+3y18 2x+4y20 c. 3x+2y18 x,y0 2x+4y20 x,y0 b. 3x+2y36 4x+2y40 d. 3x+2y18 2x+4y20 x,y