Which of the Following Statements Is an Example of the Wealth

Which of the following statements is an example of the wealth effect?

A) If people feel wealthier because their stock portfolios have risen,they tend to increase their consumption of goods and services.
B) One of the many factors that caused the Great Depression was that by 1930 the market for consumer durables was saturated.
C) When wealthy people expect a recession they tend to postpone major purchases until times get better.
D) When people expect inflation they often buy consumer durables before prices go up.