The correct answer among all the other choices is A. diary of a Jewish prisoner at Auschwitz. This could be the primary source material that would help you analyze the issues that the Nuremberg Trials addressed. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Here is the revised paragraph with the correct pronoun agreement:
"everyone is excited for the pep rally. katie and jill are in charge of blowing up the balloons, their least favorite task. they hate how the balloons have to be completely full or they won't float. on the other side of the gym, sam is practicing her cheer routine. if she doesn't practice, she could embarrass herself. the last to arrive are brynn and avery with the shirts to give away. as long as everyone does their part, the pep rally will be a success.
♡︎ note: obviously you would use capital letters i just don't type like that
You cannot believe my new boss, her hair is untidy and apperance is very unprofessional
It’s A.
All the other options would sound choppy if you try to integrate the phrases into the sentence