Hi, you've asked an incomplete question. However, I inferred you might be referring to the article found online.
Answer:
A. Tsunami-prone regions of western Japan
Step-by-step explanation:
Remember, a student's research project is one that is undertaken with the overall goal of finding the answer to a specific research question.
Therefore, answers to the research question: What are the Tsunami-prone regions of western Japan? can be sourced from the article by a student who conducts research to map out Tsunami-prone regions of western Japan.