West Africa's smaller societies such as Benin and Hausa, grew in ways such as trade and farming, building off of previous achievements. Africa's larger kingdoms improved in the factors of education, with the introduction of new Muslim teachings, as seen in maliand shonghai kingdoms.
You could honestly just google the words in the right collum. You are likely to find them there. It would be faster too!
Maynard Jackson was the first
Your answer is B because after the separation of Berlin in 1945 Eastern Germany literally built a wall that divided the country into Easter Communism and Western Democracy