In the table below, all figures are in million dollars, summarizes the result of recent cost-benefit analyses of five government projects:

Project	Social Benefits	Social Costs	Net Social Benefits	Benefit-Cost Ratio
A	$200	$225
B	220	200
C	400	300
D	350	220
E	325	200

Part A: Compute the net gains (net social benefits) and the benefit-cost ratio for each project. Write your answers in the space provided below. Use this format for writing your answers:

Net Social Benefits: Project A _____; Project B _____; Project C _____; Project D _____; Project E _____

Benefit-Cost Ratio: Project A _____; Project B _____; Project C _____; Project D _____; Project E _____

Part B: If the government wanted to maximize social welfare, which one of the projects listed above should be undertaken? Briefly explain.

Part C: What does the benefit-cost ratio indicate?

Part D: If the governments budget was constrained to $200 million, which project should it choose to maximize social welfare? (Assume that social costs and the governments budgetary costs are equal).