In Regards to the Common Information Effect,what Is the Main

In regards to the common information effect,what is the main problem with an uneven distribution of information?

A) Some team members are willing to share information with others,but some are not.
B) Certain pieces of information get more time,attention,and emphasis than alternative pieces of information.
C) The collective intelligence between the partners can be unbalanced.
D) Certain group members can be uninterested in the discussion and not want to participate.