please help, first picture is question 2 in the question

Q: Continuing the scenario from question 2: assuming that you only have 500 units of M on hand in week (and no other finished goods, subcomponents, or raw materials in Inventory, what is the earliest week will you be able to start selling K to customers? A.Week 0 B.Week 2 C.Week 3 D.Week 4 E. Week 5 Q: Continuing the scenario from question 2 and 3 consider the following assume that the demand schedule for product k over the next 7 periods was 0,200,0 400,500,0 and 300 , respectively, and you currently had 500K currently in inventory Given all that, what|would be the not requirements for In week 5? A.200 B. 0 C. 400 D. 300 E. 500