It was Jean Monnet, he is a persuasive supporter of European solidarity, he is considered as one of the establishing fathers of the European Union. Jean Monnet has been called "The Father of Europe" by the individuals who see his creative and spearheading endeavors in the 1950s as the way to setting up the European Coal and Steel Community, the ancestor of the present European Union.
It has to be (b) by process of elimination
The telegraph significantly influenced the enhancements larger and more efficient economic markets. The telegraph reduced the time taken to communicate information across distances.
Liberalism, puts an emphasis on human freedom, standing for protection of political and civil liberties. And a strong parliamentary government.