Read the paragraph. Samuel Slater worked in a textile factory in Britain. Britain was the first country to invent a machine that spins thread. This spinning machine sped up the production of cloth. The British wanted to maintain their manufacturing advantage, so it was illegal to take the plans for those machines out of the country. It was also illegal for trained textile workers to leave. However, Samuel Slater wanted to go to the United States, so he left Britain in disguise. Once he reached the United States, he built a spinning machine from memory. By doing so, he brought industrialization to America.

Which of the following would be the best topic sentence to discuss Samuel Slater’s influence on industrialization?

1. Slater learned how to operate a spinning machine in Britain.
2. Slater ran a machine that speeded up cloth production.
3. Slater helped industrialization spread from Britain to the United States.
4. Slater broke the law that forbade taking plans out of the country.