Some scientists believe that race is . A. determined by culture B. a good way of classifying religious groups C. a good way of classifying humans D. socially constructed by humans

Ghana, first of the great medieval trading empires of western africa (fl. 7th–13th century). it was situated between the sahara and the headwaters of the sénégal and niger rivers, in an area that now comprises southeastern mauritania and part of mali.