Yes, that is correct! The answer is B. "Tutora". To find the answer, you can look at the question and fill in the blank with the best option that makes sense. In this case, the question is asking why your older sister is at school, and the response states that she works as a volunteer and is ________ of mathematics. Out of the given options, "tutora" makes the most sense because it translates to "tutor" in English, which would fit the context of someone who is knowledgeable in mathematics. Therefore, the correct answer is B.
