The constraints in this problem are the maximum labor hours (160 hours) and the available ounces of diamonds (800 ounces). The profit for each type of jewelry is given as: Bracelets ($300), Necklaces ($200), and Earrings ($100). The labor hours required for each unit are: Bracelets (0.35 hours), Necklaces (0.15 hours), and Earrings (0.05 hours). The ounces of diamonds required for each unit are: Bracelets (1.2 ounces), Necklaces (0.75 ounces), and Earrings (0.5 ounces)