Kozy Enterprises is considering manufacturing a new product. It projects the cost of direct materials and rent for a range of output quantities as shown below:

Output in Units			Rent Expense			Direct Materials
1,000			$5,000			$ 4,000
2,000			5,000			6,000
3,000			5,000			7,800
4,000			7,000			8,000
5,000			7,000			10,000
6,000			7,000			12,000
7,000			7,000			14,000
8,000			7,000			16,000
9,000			7,000			18,000
10,000			10,000			23,000
11,000			10,000			28,000
12,000			10,000			36,000

(a) Based on the information above, choose the correct diagram for the behaviour of each cost for output ranging from 1,000 to 12,000 units.