Which of the Following Statements Is CORRECT

Which of the following statements is CORRECT?

A) Supply and demand cannot explain why a particular good or service becomes more expensive relative to other goods and services.
B) Inflation affects only the more advanced countries, whereas less advanced countries face deflation.
C) Prices of most goods and services remained stable during the Great Depression.
D) When the economy is in recession and jobs are hard to find, inflation tends to fall.