Which of the Following Would Most Likely Be Called a Hyperinflation

Multiple Choice

Which of the following would most likely be called a hyperinflation?

A) Price increases averaged 300 percent per year.
B) The inflation rate was 10 percent per year.
C) Real GDP grew at a rate of 12 percent over a year.
D) A stock market index rose by 1,000 points over a year.