The correct option is C Nauru
The Republic of Nauru, a tiny South Pacific island nation, has become the 189th member of the International Monetary Fund (IMF) and World Bank. By joining the World Bank (WB), Nauru will get access to financial support, technical support and special expertise in dealing with Pacific area issues like water and sanitation and disaster risk management amid the threat of climate change and rising sea levels. With the IMF, Nauru can benefit from the crisis lender’s advice on managing government finances and monetary policy.