What was the role of Portobrás in the Project Ferro Carajás? To construct and operate the Estrada de Ferro Carajás (EFC). To create a 'corridor of...

What was the role of Portobrás in the Project Ferro Carajás?

To construct and operate the Estrada de Ferro Carajás (EFC).
To create a 'corridor of exportation' that would also serve private projects interested in establishing themselves in the region.
To manage the project of iron exploration.
a) Only I is correct.
b) I and II are correct.
c) II and III are correct.