A group's tasks can influence its processes and outcomes because A. tasks often reduce the impact of cultural differences among group members B. tasks specify the desired end result of group activity, as well as other aspects of group processes such as the nature of interdependence of group members C. tasks are always clearly defined and can help amplify the positives effects of cultural diversity of group members D. tasks specify the desired end result of group activity, and reduce the negative effects of cultural difference among group members