The base word of "contradiction" is dict.
Meaning to say something.
Answer: I think for a collaborative discussion to be succesful is A) all students in the group agree on one idea.
Greetings once again, Gary :)
- Why is Tom Robinson unable to use his left arm? -
B) It got caught in a cotton gin.
(B) is correct because Reverend Sykes tells the children (Scout, Jem, and Dill) that Tom got his hand caught in a cotton gin when he was a child.
~Hope I helped!~
Usually, in a conclusion, you wrap up what you have been writing about the whole time. So, a conclusion is basically a summary of the whole text. You can introduce new ideas for the reader, but it is usually inadvisable. In a couple of sentences, you should finish your text, referring to the previous paragraphs and just wrap it all up nicely.