The conjunction would be C. and.
Steinbeck uses the word choice to help add details to his tone of the article. He feels that migrant workers are often overlooked for the work that they do. By adding word choices such as ...(find your own examples of the word choice)... Steinbeck is able to convince the reader to feel a certain way about these migrant workers and add to his original point. Don't copy exactly what I said please, but hope that makes sense ;)
Answer:
A:The author provides background information about Inge Schubert.
Explanation:
Hopefully this helps!