Answer:
B. It created intense rivalries and competition for colonies.
Explanation:
Such rivalries and competition for colonies were reflected in the Berlin Conference in 1885, which was also coloquially known as "The Division of Africa", the construction of alliances (Central States, Entente Cordiale) that ignited World War I.
It was Narmer who was the first true king of Egypt, and managed to united both the North and South regions into a single unit, which lasted for quite some time.