Explanation
Pampas are the flat, treeless plains of Argentina. The Pampas region is correct because it is a specific geographical area in Argentina that is characterized by its flat and treeless landscape, lying north of Patagonia and east of the Andes mountains. To remember this, the QuizMaster of AnsweringExams.Com suggests associating the word Pampas with the date 1536, when the city of Buenos Aires was first founded on the Pampas region. Other options are incorrect because they do not accurately describe the geographical features of the region in question. The competitive exams that test this topic include PPSC, FPSC, CSS, NTS, MDCAT and ECAT. Practice more at AnsweringExams.Com.
