A country that has its largest economic activity in the primary sector indicates that it is

The Primary sector of the economy includes any industry involved in the extraction and production of raw materials, such as farming, logging, hunting, fishing, and mining. The primary sector tends to make up a larger portion of the economy in developing countries than it does in developed countries..

Explanation:

sorghum farming likely spread with the bantu migration. there is your answer i had to get it wrong to get this right so i hope ya'll enjoy!