A small business enterprise makes dresses (x) and trousers (y). To make a dress requires 12 hours of cutting and 45 minutes of stitching. To make trouser, it requires 15 minutes of cutting and 1 12 hours of stitching. The profit on dress is P100 and on pair of trousers is P150. The business operates for a maximum of 8 hours of stitching and cutting per day. Which of the following are constraints of the problem? i. 0. 5x + 15y 5 8 ii. 45x + 1.5y s 8 iii. 0. 5x + 0.25y $ 8 iv. 0.75x + 1.5y $8. A i and ii B iii and iv i and iii D ii and iv