<span>d. feeling powerful and knowing you can change your behavior and responses
</span>
The correct answer is Carol has a cottage near the shore.
This supporting detail has nothing to do with her study of marine life. She could have this cottage because she inherited it, or she just likes the place - it doesn't really contribute to her love or study of marine life. The other options clearly support why she is studying marine life, whereas the one with the cottage does not.
The answer is D .......!!!!
Answer 1 is the most likely option.
I have not read the book but the hint refers to PROBLEMS that Jack is causing, and challenging leadership and rules seems the most problematic as the rest of the answers seem like helpful behavior.