I think A. Otherwise you would have to wait some time for an answer to be written down.
Based on this excerpt, the author would argue that life in the mountains simple and satisfying. The idyllic way they describe the setting, with gentle wind and beautiful light of the sun shows that it would be a breathtaking place to live. Also, the emotional attachment of the main character to living in the mountains shows that the author thinks it is a desirable scenario.
The sentence that uses the correct punctuation is; Ms. Oaks told my mom that my science project was "thoughtful and thorough, showing real interest in the assignment!" The correct answer is B.
