Answer:
The bonds that keep molecules together break apart and form new bonds during chemical reactions, rearranging atoms into different substances. Each bond takes a distinct amount of energy to either break or form; the reaction does not take place without this energy, and the reactants stay as they were.
When writing a thesis statement, you should avoid making a claim without any backup to your claim. The second possible answer, "making a claim," doesn't say "making a claim with backup," and so I would say the answer to this question is B; "making a claim."
The answer is C. He risks unnecessary danger to his crew because he wants to taunt the Cyclops.