When one decision is made, the next best alternative not selected is called a) economic resource.
b) opportunity cost.
c) scarcity.
d) comparative disadvantage.
e) production.

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.

Sjjdhdhdhd isk just trying to get points 12 r̰̃ṵ̃