Question with options: can we draw the following hypothesis from the context?

Context:

The Prime Minister of Spain Zapatero visited Brazil, Argentina, Chile and Uruguay recently, in a effort to build a left axis in South America. The cited countries' South American Presidents agreed to collaborate at international level, particularly in the United Nations , European Union and with Paris, Berlin and Madrid.

Hypothesis: Brazil is part of the United Nations.
Available options: a). yes. b). no.
A:
a).