Heather Adams, production manager for a Colorado exercise equipment manufacturer, needs to schedule an order for 50 UltimaSteppers, which are to be shipped in week 10 . Subscripts indicate quantity required for each parent. Assume lot-for-lot ordering. This exercise contains only parts b and c. Click the icon to view information about the steppers. The product structure is as follows: b) Choose the correct time-phased structure. b) Choose the correct time-phased structure. A. B. c) Develop a net material requirements plan for F (enter your responses as whole numbers). Heather Adams, production manager for a Colorado exercise equipment manufacturer, needs to schedule an order for 50 UltimaSteppers, which are to be shipped in week 10 . Subscripts indicate quantity required for each parent. Assume lot-for-lot ordering. This exercise contains only parts b and c. Click the icon to view information about the steppers. The product structure is as follows: b) Choose the correct time-phased structure. b) Choose the correct time-phased structure. A. B. c) Develop a net material requirements plan for F (enter your responses as whole numbers)