The road you travel from Tana to Cathay (China) is perfectly safe, whether by day or night, according to what the merchants say who have used it... Cathay is a province that contained a multitude of cities and towns. Among others there is one, in particular, that is to say, the capital city, to which is a great resort of merchants, and in which there is a vast amount of trade, and this city is called Cambalec. And the said city hath a circuit of one hundred miles, and is all full of people and houses and of dwellers in the said city."Which objects and ideas was the author most likely writing about that represented continuity or change in Chinese trade?
a. The safety of the road from Tana to Cathay
b. The multitude of cities and towns in the province of Cathay
c. The amount of trade and merchants in the capital city of Cambalec
d. The growth and expansion of the city, with a circuit of one hundred miles
