Although Sometimes a Seeming Adversary of Business and Industry When

Although sometimes a seeming adversary of business and industry when acting in a regulatory role, and often disliked by the private sector for its taxes and regulations, government is nonetheless essential to the functioning of a market economy because:

A) when it works, government provides the law and order, predictability, and accountability that market economies need to survive and thrive.
B) only government can create a labor force.
C) governments are best able to give businesses access to capital that they need.
D) only the public sector can finance all the infrastructure and facilities that private sector organizations need.