Who established some of the first trade alliances with american indians in oklahoma territory? a. pierre mallet b. du tisné c. la harpe d. la salle

Idont know which one is right   but i know that c is wrong and a might be wrong

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.