Don Is Convinced That It Would Be Best If the U.S

Multiple Choice

Don is convinced that it would be best if the U.S. was on a gold standard. He enthusiastically reads any editorials or articles that confirm his view. He frequently dismisses editorials and articles that argue against the gold standard because he presumes they are flawed or written by "crackpots." Don's behavior most clearly illustrates which of the following systematic mistakes that people make?

A) people are overconfident
B) people give too much weight to a small number of vivid observations
C) people are reluctant to change their minds
D) All of the above are correct.