Beats by Dre produces Beats Studio3 headphones. Currently, it is week 1 for headphones production and there are currently 40 speakers (As) in stock. We need 400 headphones (As) at the start of week 5. If there are scheduled receipts planned for week 3 and week 4 of 120 As each and A has a lead time of 1 week, when and how large of an order should be placed to meet the requirement of 400 As?

	Week 4, 400 As
	Week 1, 400 As
	Week 1, 200 As
	Week 4, 40 As
	Week 4, 200 As