Having a knowledge on ironworking technology was an advantage for the Bantu speaking farmers.
Answer: Option D
Step-by-step explanation:
During the iron age many tribes and groups in various parts of Africa, especially central Africa, developed the habit of using materials made up of iron. Some of the tribes used iron for agricultural activities whereas some used it for activities like stone and wood cutting.
In fact the usage of iron equipment for agriculture is an example of how iron age flourished. This was extensively used by Bantu speaking tribes, who hail from Central Africa.