Final answer:
Thorbjorn Jagland believed that the European Union had the advantage of promoting human rights, education, and social concerns. The EU's unification of state functions has created economic and foreign policy cooperation, which has opened up opportunities for member countries to benefit from the collective strength of the EU.
Step-by-step explanation:
Thorbjorn Jagland, the former Secretary-General of the Council of Europe, believed that the European Union had the advantage of promoting human rights, education, and social concerns. This emphasis on standards of living and shared values has led to the development of a high quality of life in Europe. Additionally, the EU's unification of state functions has created economic and foreign policy cooperation, which has opened up opportunities for member countries to benefit from the collective strength of the EU.