In One Well-Known Social Psychology Experiment, Research Participants Were Brought

In one well-known social psychology experiment, research participants were brought into a dark room where an experimenter projected dots of light. These dots of light appeared to move slightly-though exactly how far they moved the participants couldn't say. When asked to estimate the distance that the light traveled, participants tended to look to others in the room and ask them what they thought (not because they wanted to gain the approval of others, but because they assumed that others knew more than they did) . It would therefore be MOST accurate to say that the participants' behavior was a product of ____.

A) normative influence
B) informational influence
C) implicit social norms
D) elaboration likelihood