B.
A nominative absolute is a phrase that starts or ends a sentence and has no grammatical relation with the rest of the sentence.
I’m pretty sure the answer is true
They will learn about everyones culture and traditions while working together.
Seems to me that the second option looks as if it were correct. While paraphrasing and summarizing, you are trying to shorten up an original piece of writing. Giving a well developed descriptions of main ideas isn't something to look for in paraphrasing, so that's why the first option is incorrect. In addition, restating basically everything from a text is not called paraphrasing nor summarizing, and that is why I'd rather classify it as copying.
