A 1967 Study Demonstrating the Fundamental Attribution Error Assigned Participants

A 1967 study demonstrating the fundamental attribution error assigned participants to read an essay that was either in favor of or against Fidel Castro. Participants were also randomly assigned to be told that the author of the essay either freely chose to write it or was forced to write it on that particular theme. What were the results of the study?

A) Participants had no opinions about the author's attitude toward Fidel Castro, regardless of which essay they read.
B) Participants believed the author's attitude toward Fidel Castro corresponded to the essay that was written only when they believed the person freely chose to write the essay.
C) Participants believed the author's attitude toward Fidel Castro corresponded to the essay that was written only when they believed the person was forced to write the essay.
D) Participants believed the author's attitude toward Fidel Castro corresponded to the essay that was written, regardless of whether the person was forced to write the essay or had chosen to do so.