Researchers Edward Jones and Victor Harris (1967) Had Duke University

Researchers Edward Jones and Victor Harris (1967) had Duke University students read debaters' speeches either supporting or attacking Cuban leader Fidel Castro. When the students were later told that each debater's position had been assigned, they

A) assumed the debater's position merely reflected the demands of the assignment.
B) described the speaker's position as poorly developed.
C) concluded that to some extent the speech reflected the speaker's true beliefs.
D) concluded that the debating coach was an effective persuader.