Which of the following is an example of an injection into the circular flow of income and expenditure?

Demand-pull inflation occurs

A) when the aggregate supply curve shifts to the right, while aggregate demand remains stable. B) when the aggregate demand curve shifts to the right, while aggregate supply remains stable. C) when the aggregate demand curve shifts to the left, while aggregate supply remains stable. D) when the aggregate supply curve shifts to the left, while aggregate demand remains stable.

What is one reason a gambler might bet $1,000 that a team that is ranked sixteenth will win the NCAA basketball tournament?

A) irrationality B) overconfidence C) exuberance D) gambler's fallacy