The production planner for a private label soft drink maker is planning the production of two soft drinks: root beer (R) and sassafras soda (S). There are at most 12 hours per day of production time and 1500 gallons per day of carbonated water available. A case of root beer requires 2 minutes of time and 5 gallons of water to produce, while a case of sassafras soda requires 3 minutes of time and 5 gallons of water. Profits for the root beer are $6.00 per case, and profits for the sassafras soda are $4.00 per case. 7. What is the objective function? (A) P=4R+6S. (B) P=2R+3S. (C) P=6R+4S. (D) P=3R+2S. (E) P=5R+5S. 8. What is the time constraint? (A) 2R+3S720. (B) 2R+5S720. (C) 3R+2S720. (D) 3R+5S720. (E) 5R+5S720. 9. Which of the following is not a feasible solution? ( ) (A) (R,S)=(0,0). (B) (R,S)=(0,240). (C) (R,S)=(180,120). (D) (R,S)=(300,0). (E) (R,S)=(180,240)