The region to the north of __________ is called 'Drought Quadrilateral?
(A) Brazilian Coast
(B) Brazilian Plain
(C) Brazilian Islands
(D) Great Escarpment of Brazil

Hint: The quadrilateral drought is also known as the drought polygon and is composed of eight states in northeastern Brazil. This extension line starts in northern Bahia and extends to the coast between Natal and St. Louis. The area under this area receives approximately 15-30 inches of precipitation per year.

Complete step by step solution
Great Escarpment of Brazil The large cliffs on the edge of the southern African plateau separate the inner plateau of the highlands of the region from the rather narrow coastal zone. ...Large cliffs are generally formed by erosion at the source of rivers in coastal plains. The Serra do Mar (Great Cliff) is located on the edge of the Atlantic Ocean on the Brazilian plateau and provides a barrier between the coast and the interior of the country. The large cliff suddenly rises from the Atlantic coastal plain to a height of 9,000 feet (2,743 m).

Brazilian Coast: Brazil’s coastline is 7,491 kilometers long, making it the 16th longest national coastline in the world. All the coasts are adjacent to the Atlantic Ocean. ...A famous expression in Brazil is "from Oiapoque to Chui", which means from the southernmost point to the northernmost point of the country.

Brazilian Plain: The Pampas (from Quechua: Pampas, meaning "plain") is a fertile South American lowland with an area of ​​more than 1,200,000 square kilometers (460,000 square miles), including Buenos Aires, Argentina, La Pampa, Santa Fe, Entre Rios, and Cordoba; the whole of Uruguay; Brazil’s southernmost state, Rio Grande do Sul.

Brazilian Islands The Islands are clusters or chains of islands. This special island includes 21 independent islands and islets, all inhabiting the vast Atlantic Ocean. They are about 350 kilometers from the Brazilian coastline and belong to the state of Pernambuco.

Thus, option (D) is correct.

Note: The east side of the highland is delimited by a cliff at an altitude of 790m. The cliffs are a barrier to the southeast wind and cause rainfall on the terrain in coastal areas. Except for the highlands, the impact of these winds is reduced, resulting in the least rainfall.