How did manea miss elevate the standing of the mali empire in the world?

The Mali Empire (Manding: Nyeni[5] or Niani; also historically referred to as the Manden Kurufaba,[1] sometimes shortened to Manden) was an empire in West Africa from c. 1235 to 1670. The empire was founded by Sundiata Keita (c. 1214 – c. 1255) and became renowned for the wealth of its rulers, especially Musa Keita. The Manding languages were spoken in the empire. The Mali Empire was the largest empire in West Africa and profoundly influenced the culture of West Africa through the spread of its language, laws and customs.[6] Much of the recorded information about the Mali Empire comes from 14th-century North African Arab historian Ibn Khaldun, 14th-century Moroccan traveller Ibn Battuta and 16th-century Moroccan traveller Leo Africanus. The other major source of information is Mandinka oral tradition, through storytellers known as griots.[7]

answer; ///i believe that the correct answer is refrigerants,(like r12) and aerosol

a and c?

i think it is a and c