Answer:
B. the Schuman Plan
Step-by-step explanation:
The Schuman Plan was a plan proposed and made known in 1950. It was declared by the French foreign minister Robert Schuman.
The purpose is to establish economic cooperation and common political interest among the European countries that would result in steady political integration, thereby enhancing the formation of relations between them.
This plan led to an agreement called the Treaty of Paris that ultimately resulted in the European Coal and Steel Community.