State different types of economic activity

The Primary Sector, i.e., raw materials.

The Secondary Sector, which includes industry and manufacturing.

The Tertiary Sector, i.e., services.

The Quaternary Sector, which we also call the 'knowledge sector. '

mali had been a state inside of the ghanaian empire. after ghana fell because of invading forces and internal disputes, mali rose to greatness under the leadership of a legendary king named sundiata, the "lion king." the songhai empire, already weakened by internal political struggles, went into decline.

the answer is:

c. economic output