A health system has four proposed projects for next year. The projects are listed below with their cost (in thousands) and the estimated IRR. The health system has a corporate cost of capital of 12%. How much should they budget for capital expenditures?

Project	Cost	IRR
A	1,800	18%
B	2,400	10%
C	1,400	15%
D	2,100	13%

Group of answer choices

1,800

3,200

4,200

5,300

7,700