the correct option is CONTRADICTION.
A contradiction exists bewteen the value of group superiority and the values of freedom, democracy and equality.
The expedition to Bartolomeu Dias in 1487-1488 years rounded the southern extremity of Africa and in 1488 opened a cape, named Cape of Good Hope. In 1487, at the head of the expedition, which was aimed to find the sea route to India, explored south-west coast of Africa from 22 ° to 33 ° south latitude. The first of the Europeans skirted Africa from the south side. Passing along the southern coast of Africa to the Bay of Algoa was forced to turn to Portugal on demand of the team; On the way back opened the Cape of Good Hope (1488).
Answer: better, worse performance
Explanation:
Sleep deprivation has a negative effect in the body because for organ system to function better and properly, the body needs quality rest. When you subject the body by depriving it of it's rest as at when due leads to learning and memory impairment and also reduce your focus and attention. For better performance, students are advised to study and get good quality and quantity sleep