fast please

Select which of the following are a variation of job costing. i. Batch costing ii. Process costing iii. Unit costing iv. Terminal costing O a. ii and in O b. ii and iv Oc. i and iv O d. 1,11,111&iv Calculate reorder level from the following, consumption per week 100 - 200 units and delivery period 70 - 84 days. O a. 800 units b. 1,600 units O c. 2,000 units O d. 2,400 units