Kim is taking part in a group discussion about the book they are reading for class. She quickly becomes aware taht the rest of this group did not prepare for this discussion.

Which action is a definite sign that the group did not prepare?
They keep flipping the pages of their books, looking for something to say.
They seem to be very comfortable reading aloud from the textbook.
They have chosen a section of the book that they think is important to discuss
They are confident when the moderator brings up a topic to discuss.

The action that is a definite sign that the group did not prepare is: They keep flipping the pages of their books, looking for something to say. This suggests that they are searching for information to contribute to the discussion, indicating a lack of preparedness.

The action that is a definite sign that the group did not prepare is: They keep flipping the pages of their books, looking for something to say.

Explanation: In a group discussion, if the members of the group are constantly flipping through their books, it indicates that they are trying to find something to contribute to the discussion. This suggests that they have not done the required reading or preparation beforehand. On the other hand, if they seem comfortable reading aloud from the textbook, it could indicate that they have prepared by familiarizing themselves with the material. Choosing a section to discuss and being confident when the moderator brings up a topic can either indicate preparation or improvisation skills, so they might not be signs of lack of preparation.