Answer:
The Gobi Desert (/ˈɡoʊbi/) is a large desert or brushland region in Asia.[1] It covers parts of Northern and Northeastern China and of Southern Mongolia. The desert basins of the Gobi are bounded by the Altai Mountains and the grasslands and steppes of Mongolia on the north, by the Taklamakan Desert to the west, by the Hexi Corridor and Tibetan Plateau to the southwest and by the North China Plain to the southeast. The Gobi is notable in history as the location of several important cities along the Silk Road.
Gobi Desert
I think it was because we really don't know what exactly happened in the past.
Also, I'm pretty sure people did not keep track of colored people back then.
I want to say A . Hope this helps :)
The Equator passes through three of the seven continents: South America, Africa and Asia. Although it does not pass through the mainland of Asia, it does run through Indonesia and the Maldives, which are part of the continent of Asia.