In the given question, a statement of Assertion is followed by a statement of Reason. Mark the correct answer.

Assertion: The European Union being a supranational organization is able to exert defense, foreign relations, political, economic, and social influence only next to the USA while also challenging its position many times.
Reason: All the member countries of the EU are signatories to a pact that makes it binding for them to agree upon certain non-negotiable principles.

Both the Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

The EU has gained for itself an important standing in global matters because of the headway it has made in aspects such as trade, technology, nuclear arsenal, economic growth, has an important role in international organizations. It was therefore able to create an influential space in global arena. But different member states had their own different foreign policies and defense policies which limits its intervention in these areas.