What Was Asch's Conclusion When He Tested the Impact of Group

What was Asch's conclusion when he tested the impact of group size on conformity by altering the number of confederates?

A) Conformity increases with ten confederates than with five confederates.
B) Conformity increases as an exponential function of group size.
C) One group of six confederates produced more conformity than two groups of three confederates.
D) Increase in conformity was negligible with three or four confederates.