The time-phased net requirements for the base assembly in a table lamp over the next six weeks are: Week 1 2 3 4 5 6 Requirements 335 | 240 | 180 340 320 200 The setup cost for the construction of the base assembly is $200, and the holding cost is $0.30 per assembly per week. a. Determine the lot sizes using part period balancing. b. Determine the lot size using the Wagner-Whitin algorithm. c. Compare the holding and setup costs obtained over the six periods using the policies found in parts (a) through (@) with the cost of a lot-for-lot policy