Darley and Gross (1983) Showed Participants a Video of a Girl

Darley and Gross (1983) showed participants a video of a girl taking a reading test. Some participants were told that the girl was from an affluent family and others were told that she was from a poor family. Then, participants were asked to rank the girl's academic abilities. Which statement regarding the findings of this experiment is true?

A) Ratings were unaffected by knowledge of the girl's socioeconomic status as long as she was dressed similarly in both videos.
B) Ratings were unaffected by knowledge of the girl's socioeconomic status as long as the girl performed equally well on the reading test in both videos.
C) Ratings were higher if they thought the girl was affluent relative to poor, but participants could not justify these ratings with evidence from the video.
D) Ratings were higher if they thought the girl was affluent relative to poor, and participants could justify these ratings with evidence from the video.