Historians use terms such as A.D, B.C, decade, and century to refer to periods of time. The correct answer is B, periods of time.
A) Egypt
They had very many domestic animals such as Camels. :)
The correct answer you are looking for should be answer D. They adopted Hanry Fords manufacturing techniques
.............. THE ANSWER IS BANTU ...............
Ideology of conservatism.
I hope this helps!