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D. Castro started manufacturing hydrogen bombs with the help of communist China.</span>
I think you forgot to add some detail but based on my research, the correct answer to this question is "A Bill of Rights was added to the Constitution." Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
The actor you're looking for, and who has indeed written down his name in history as being a famous actor that was also involved heavily in charitable work and auto racing was Paul Newman.
I would say B. improve food production
