B.straightforward word choice
Answer: The last one
Explanation:
It is the one that says
Nadege slowly shuffled up to the front of the classroom. Hiding her eyes, she presented her research paper on her mother’s homeland. She showed her class blurry images of her grandmother’s neighborhood and dull pictures of her favorite foods.
I believe the answer would be D: a current study on the effects of stress on the body published by a medical journal.
Hope this helps.