TOEFL Listening: TPO-TOEFL听力TPO - L77Q09285Y74CANSR$

Why does the professor mention medieval Europe? A. To point out an important difference between Europe and the United States B. To introduce a reason that the first European settlers moved to North America. C. To indicate the style of community planning followed by in the northern colonies. D. To point out that urban planning has changed considerably since the medieval period.