What is the World Bank?

What is the World Bank?
 
  A) It is the bank that administers and manages all aspects of international trade, including legal and political aspects.
  B) It is a bank that makes loans to impoverished nations for zero percent interest.
  C) It is a bank administered by the United Nations whose money can only be used by developing nations.
  D) It is an international agency that provides loans and technical assistance to promote trade and development.
  E) It is a bank that loans money to entrepreneurs in wealthy nations so that non-profit groups can administer aid to communities.