The correct option is A Invention of Dynamo by Werner Siemens
The Industrialization in Germany occurred almost a century later than England. This was because until 1870, Germany was not unified. In 1871, with the formation of New German Confederation, the country became politically, socially, and economically stronger. Thus, the unification provides a smooth platform for the growth of industries. Also, as a result of Seven Weeks war with France, Germany gained Alsace and Lorraine. These were mineral rich regions and gave an instant boom to the economy.