In the 1950s, Solomon Asch Performed an Investigation That Required

In the 1950s, Solomon Asch performed an investigation that required subjects to state which of three lines on a second card matched the line that was presented on the first card. What was he investigating?

A) Perception and how it is affected by same and mixed-gendered groups.
B) The extent to which subjects will follow the requests of the experimenter.
C) The duration of time people are willing to stay in an experiment despite the experimenter asking them to stay "just a little longer".
D) The effects other people's judgments had on the behavior of the subject.