Bortello Corporation produces high-quality leather boots. The company has a standard cost system and has set the following standards for materials and labor:During June, Zinc Company produced 10,000 chainsaw blades. The standard quantity of material allowed per unit was 2 pounds of steel per blade at a standard cost of $5 per pound. Zine determined that it had a favorable materials usage variance of $1,500 for June. Calculate the actual quantity of materials used by Zinc Company in June. Oa. 19,700 pounds Ob. 12,645 pounds Oc. 13,305 pounds Od. 17,425 pounds