Product C is assembled from components D and E. Item D is made from item F and Item G. Item F is made from item J and item K Item E is made from item H and item I. Item H is made from Item J. All parent items require 1 unit of their respective component items. The lead times are as follows Item C D E F G H I J K Lead time(weeks) 3 5 6 5 1 1 3 1 3 a.) What is the lead time required to respond to a customoer order for product C, assuming that there are no existing inventories or scheduled receipts? b.) What is the customer response time if items J and K are in stock (i.e., do not need to be ordered)? c.) If you are allowed to keep either item G or item I in stock (along with items J and K from part b), which one would you choose and why?