The conclusion that is supported by the statement is : Desertification reduced the amount of arable land available to Africans and Europeans
Since the land couldn't be used to grow Crops, the ancient European does not see African Land as a region that is worth to conquer. Even until today, the modern African only used Sahara as an highway
The correct answer is letter A.
Explanation: Discrimination occurs when someone adopts a prejudiced attitude (based on preconceived ideas) toward someone, whether it be racial, gender, sexual orientation, nationality, religion, economic status or any other social aspect.
The correct answer is - India.
Columbus went on a mission to discover a sea route to India from the opposite side, or rather to move towards west so that he comes out on the eastern part of India. So when he discovered the islands in the Caribbean he had no idea that those islands are a part of a totally new world unknown to the Europeans (apart from the Vikings), and he thought that those islands must be islands situated east of India, so that is why he also gave the name Indians to the native populations he encountered.