Kalanja Designs, which produces earrings, is developing direct material standards. Each earring requires 0.35 kilograms of a special metal. The allowance for waste is 1 kilograms per earring, while the allowance for rejects is 0.8 kilograms per earring. What is the standard quantity of metal per earring?

A. 1.35 kilograms

B. 0.35 kilograms

C. 1.15 kilograms

D. 2.15 kilograms