In a Classic Study by Darley and Gross (1983), Participants

In a classic study by Darley and Gross (1983) , participants were shown a video of a fourth-grade girl and asked to evaluate her math ability. Before the video they were told that the girl was from either an upper-class or lower-class background. They were also either shown a video of the girl playing on the playground, or performing somewhat well on an oral test. What was the main finding of the study?

A) Those who watched the playground video rated the girl as more intelligent when they thought she was upper- (rather than lower-) class.
B) Those who watched the oral test video rated the girl as equally intelligent whether they thought she was upper- or lower-class.
C) Those who watched the oral test video rated the girl as more intelligent when they thought she was lower- (rather than upper-) class.
D) Those who watched the oral test video rated the girl as more intelligent when they thought she was upper- (rather than lower-) class.