Concerning the Functioning of 12-Member Juries, Social Scientists Have Found

Concerning the functioning of 12-member juries, social scientists have found that:

A) 12-member juries are correct less often than smaller juries.
B) 12-member juries are correct more often than smaller juries.
C) there is no difference in the reliability of verdicts between 12-member juries and smaller juries.
D) jury verdicts cannot be studied using social science methods.