Kalanja Designs, which produces earrings, is developing direct material standards. Each earring requires 0.59 kilograms of a special metal. The allowance for waste is 0.9 kilograms per earring, while the allowance for rejects is 0.2 kilograms per earring. What is the standard quantity of metal per earring? O A. 0.79 kilograms OB. 1.49 kilograms O C. 1.69 kilograms OD. 0.59 kilograms