This map shows both the Tang (618–907 AD) and Yuan (1271–1368 AD) ancient Chinese dynasties. Which statement best describes what is shown on the map?

a
The Tang Dynasty focused on expanding into desert areas.
b
The Yuan Dynasty more than doubled the size of the Tang Dynasty.
c
The Yuan Dynasty expanded eastward during its reign.
d
The Tang Dynasty’s territory matched the land area of the Yuan Dynasty.

B. The Yuan Dynasty more than doubled the size of the Tang Dynasty.

Explanation: I just took it so yea.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.

where are the choices