All of the Following Are Finding of Early Studies on the Subtle

All of the following are finding of early studies on the subtle manifestations of prejudice, except one. Which is NOT a finding of the early studies?

A) Younger liberals more frequently hung up on black than white callers.
B) Whites helped blacks less than whites when failure to help could be attributed to non-racial attributes of blacks.
C) The more positive was white subjects' attitudes toward blacks in a mock experiment where whites read instructions to blacks, the more negative was their voice tone.
D) In a mock jury study, white jurors showed discrimination against blacks in conviction rate and sentencing only if race was an issue in the trial.