6 Saved Help Save& ExitSubmi Check my work Following are five series of costs A through E measured at various volume levels. Examine each serles and identify which is fixed, variable, mixed, step-wise, or curvilinear. Volume Series B $2,500 3,100 3,700 4,300 4,900 5,500 6,100 Series D $1,000 1,000 2,000 2,000 3,000 3,000 4,000 Series E $5,000 S,000 5,000 5,000 5,000 5,000 5,000 (Units) Series A Series C 400 800 1,200 1,600 2,000 2,400 3,600 7,200 10,800 14,400 18,000 21,600 6,000 6, 600 7,200 8,200 9,600 13,500 1:10:44 Book Print erencetS Series A Series B Series C Series D Series E