Presidential candidate Silva speaks during a meeting with businessmen in Rio de Janeiro
Presidential candidate Marina Silva of Brazilian Socialist Party (PSB) speaks during a meeting with businessmen at Industry Federations of Rio de Janeiro (FIRJAN), Rio de Janeiro September 12, 2014. General elections will be held in Brazil on October 5, 2014 to elect the president, the National Congress, state governors and state legislators. REUTERS/Sergio Moraes (BRAZIL - Tags: POLITICS ELECTIONS BUSINESS)