Someone is more likely to start to report feeling in a "good mood" or "warm and fuzzy" at which of the following bac ranges:
a. 0.02 - 0.04%
b. 0.05 - 0.10%
c. 0.11 - 0.15%
d. none of the above

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.