Which of the following statements is true regarding the effect of size of the group has on the performance of the group?
选项：

A:Evidence indicates that individuals perform better in larger groups than in smaller ones.
B:If the goal of the group is fact-finding then smaller groups are more effective than larger groups.
C:The size of the group does not affect the group's overall behavior.
D:As compared to smaller groups, larger groups are better in problem solving.
E:Evidence indicates that larger groups are faster at completing tasks than smaller ones.