When Participants Were First Placed in a Dark Room Alone

When participants were first placed in a dark room alone and asked to estimate the apparent movement of a point of light,individuals were consistent in their own estimates,and these estimates differed greatly from participant to participant.When participants made the same estimates in a group setting,their estimates converged.According to Muzafer Sherif (1936) ,why did this happen?

A) Conformity occurs when people feel anonymous in a group.
B) Conformity occurs when people can use anonymity to control others.
C) Conformity occurs when people feel uncomfortable and insecure.
D) Conformity occurs when people are in an unambiguous situation.
E) Conformity occurs when people can use others' behaviours as cues for what's right.