The most likely answer is option D
Answer: Keynesian Economic Theory
Explanation: The policy adopted by the President was to cut back taxes and increase government spending on road, bridges and schools. This policy of the government is called the expansionary fiscal policy which is used to combat an economy suffering from recession. The Keynesian theory also supports the argument that when an economy is suffering from recession, economic output is influenced by aggregate demand. Thus, the government and use its fiscal policy tools to bring the economy out of recession. It also supports that the Fed can also use its monetary policy to bring the economy out of recession. But since here taxes and government spending are uses, we can say that Obama was a proponent of Keynesian Economic theory.
Answer:
Of course a sales agent can be involved, although they will probably charge a fixed amount and not a sales percentage. Many people probably need the help of a sales agent to fill out legal forms, including contracts, etc. Not everyone has the knowledge to prepare them or simply fill them out, and a sales agent can be helpful.