In the 13^th Century When Marco Polo Visited Beijing He

In the 13^th century when Marco Polo visited Beijing he noted that __________.

A) it basically was a rural village with a few impressive temples
B) the entire city was arranged in perfect squares much like a chessboard.
C) it contained a central square with buildings that were 20 stories high-the first "sky scrapers"
D) Marco Polo never visited Beijing because foreigners were not permitted into the city.