Answer:
A. Assembly
Step-by-step explanation:
The Assembly of the League of Nations was a body that met only once a year in Geneva, Switzerland. Every state that was member of the League gave its three representatives to the Assembly.
The Assembly of the League was charged with admitting new non-permanent members to the Council. The Council had four permanent members: UK, Italy, France and Japan, and additional four non-permanent members would be elected by the Assembly.