The answer is strongly dependent on WHAT trend you have in mind.
Answer:
Apartheid was an official policy of racial segregation in South Africa from 1948 to 1994. Although racial segregation and discrimination arose earlier, after the 1948 general election, people were divided into classes by law: black, white, colored, and Asian. People of different skin colors who had lived together so far were separated, and two infrastructures were set up in the country, one for whites and the other for blacks.
This situation was clearly similar to that of the racial segregation that took place in the southern United States from the end of the Civil War until the 1960s, through which the Democratic governments of the southern states segregated African-American populations from their territories, relegating them to a citizenship of inferior conditions, with worse public services and a general lack of rights compared to those of whites.
The answer is B. folding, uplift, and erosion. certain mountains are created from the folding of the upper layers of earth's crust. valleys on the other hand are made from the erosion of land or soil. tectonic uplift of the earths crust is also responsible for creating mountains.
