Rosario (Spanish pronunciation: [roˈsarjo]) is the largest city in the province of Santa Fe, in central Argentina. It is located 300 km (186 mi) northwest of Buenos Aires, on the western shore of the Paraná River.
The answer to your question is A
Spain was founded in 20 January 1479. I'm not sure but I think it was by Christopher Columbus.
None of the above, I don't think any of them are an example of herding.
