Based on reading the text, we can infer that Sonia wants to make a difference by taking action, as the last answer option in part A shows. The sentence that best supports this statement is "Then she wrote to the U.S. government. She sent in a complaint."
Sonia thinks it is very unfair that students of Spanish and Latin origin are demeaned at the university, as these students are part of the academic community just like others. However, she knows that it's no use just complaining, but she needs to act and bring about changes to make the situation better.
More information about Latin Americans at the link:
https://brainly.com/question/10586805