#1: Below is the lead time information for the items that are associated with the bill of materials presented in the previous two questions.

	A (manufactured item)	C (manufactured item)	D (purchased item)
Lead time (weeks)	2	1	1

According to our conventional method, how long are the cumulative lead time and the cumulative manufacturing lead time, respectively?

- Cumulative lead time = cumulative manufacturing lead time = 2 weeks

- Cumulative lead time = cumulative manufacturing lead time = 3 weeks

- Cumulative lead time = 3 weeks, cumulative manufacturing lead time = 1 week

- Cumulative lead time= 4 weeks, cumulative manufacturing lead time = 3 weeks

- Cumulative lead time= 5 weeks, cumulative manufacturing lead time = 3 weeks

#2: Which of the following statement is NOT true about the time fences?

- Compared to the planning time fence, the demand time fence is closer to the present time.

- Time fences set the guidelines with respect to the level of flexibility the MPS has over different periods.

- No changes to the production plan are allowed beyond the demand time fence.

- Time fences are implemented to prevent a chaotic production system with constant expediting.

- Neither of the above