Which of the Following Findings Has Not Been Demonstrated by Research

Which of the following findings has not been demonstrated by research on self-schemas?

A) People are more likely to remember specific behaviors that reflect a self-defining attribute.
B) People process information about a self-defining attribute more quickly.
C) People's opinions about their central self-schema(s) tend to fluctuate dramatically in different situations.
D) People are reluctant to believe information that contradicts their sense of the extent to which they possess a self-defining attribute.