Which quote from the text expresses the central idea?
A “The kingdom of Ghana–in what is now Mauritania, Mali, and Senegal in West Africa–was one of the wealthiest countries in the medieval world.”
B “Slavery existed in many ancient cultures such as Greece, Rome, and Egypt long before the beginning of the transatlantic slave trade.”
C “As early as the 700s, Muslim forces from North Africa, known as Moors, raided areas of what are today known as Spain and Portugal.”
D “Over thousands of years, the Egyptians developed a society that was advanced in areas such as mathematics, science, medicine, and technology.”
The correct answer is A “The kingdom of Ghana–in what is now Mauritania, Mali, and Senegal in West Africa–was one of the wealthiest countries in the medieval world.”
Explanation: This quote directly expresses the central idea by highlighting the significance and wealth of the kingdom of Ghana in the context of medieval history. It emphasizes the location and prosperity of the kingdom, which are central themes when discussing the historical importance of civilizations in West Africa.