Yes I think the answer is B concrete.
Explanation:
For number 1: Nationalism is the identification with somebody's own nation and also to support it's interests.
For number 2: It caused intense competition among many nations with each seeking to overpower the other, a more stronger nation takes control or dominates a weaker country or territory.
For number 3: Positive incomes: promotes a sense of identity, unites people, promotes pride.
Negative incomes: leads to conflict with others, infringes on rights of others, creates xenophobia—the fear that someone will take them over.
Hope this is helpful!
Answer:
In December 1878 Sir Bartle Frere, British high commissioner for South Africa, issued an ultimatum to Cetshwayo that was designed to be impossible to satisfy: the Zulu were, among other things, to dismantle their “military system” within 30 days and pay reparations for alleged insults.
To secure Mississippi further isolating the South.
Because The Sahel was a fertile band, there was more agriculture, trade, and permanent civilization. The trade route established many colonies in order to bring gold out Africa and in to the Arabic world.
Bantu as a common language, animism as a common religion, religion economics and history intertwined, and trade routes.
Advantages: unity, trade partners.
Path from the Arab world to the western world of Africa for gold.
The further south you get, more agriculture develops.
Herds are going to be there in the south
Allows for more Sedentary life in the south.