Considering the regions established by the National Council of Water Resources (CNRH), in which Brazilian hydrographic region is São Paulo inserted...

Considering the regions established by the National Council of Water Resources (CNRH), in which Brazilian hydrographic region is São Paulo inserted?

São Paulo is inserted in the Paraná Hydrographic Region, which covers 10% of the national territory, comprising six states plus the Federal District (SP, PR, MG, GO, and DF).
São Paulo has an extensive network of rivers with a great abundance of water, being the largest ones Grande, Tietê, Iguaçu, and Paraná.
The Paraná Hydrographic Region concentrates 32% of the country's population, with 90% in urban areas.
The hydrography of São Paulo is formed by 07 Hydrographic Basins, which are Paraíba do Sul, Coastal Slope, Rio Grande, Rio São José dos Dourados, Rio Tietê, Rios Aguapei and Peixe, and Rio Grande.
a) I, II, III, and IV are correct.
b) Only II and III are correct.
c) Only I and IV are correct.
d) Only III and IV are correct.