D. Because it's asking something that requires more than a simple yes or no.
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The description provided in this excerpt from “The Pony Express” chapter one tells readers the Pony Express route was <span>difficult for both the horse and rider</span>
The best reason to assign roles in a group discussion is, so that the group can look for strengths and weaknesses in the ideas. When doing a group discussion, each member of the group should do his or her part and one of the tasks of being a member is to contribute ideas for the discussion. All members of the team are given the right to decide whether the ideas compiled are relevant or not.
