Biased Sampling in Groups Is the Process Whereby

Biased sampling in groups is the process whereby

A) people tend to choose those they know well to be in a group.
B) information that is known by many group members tends to enter into the discussion more than information known only by a few.
C) people tend to discuss negative information more than positive information in their discussion about an important decision.
D) sharing information in a group can be impeded by the gender composition of the group.