Which of the Following Best Summarizes the Research Findings of Doyle

Which of the following best summarizes the research findings of Doyle and Aboud regarding prejudicial attitudes in preschool children?

A) They often display at least some understanding of ethnic categories and show a preference for their own group.
B) They generally do not display stereotyping or prejudicial attitudes, regardless of the context.
C) They display stereotyping and prejudicial attitudes only if they are cognitively advanced.
D) They display stereotyping and prejudicial attitudes only if their parents have provided opportunities for imitation of these attitudes.