5.What is Xian China famous for?

Xian china was most famous for their bronze tools, structures, and their silk.

Explanation:

The Chinese were the most famous for their culture because they were the oldest and still are the oldest culture in this world today. In fact, the Chinese had made a route through land that spread across their country into Africa for their trade of silk and then more cultures came to this trade route to get the silk and it had become really famous. After the trade route became famous they called it the silk road for the silk that comes through trade. once the silk became seriously famous for the area, they made a water trade route because so many people wanted their silk. Silk wasn't the only thing to come through trade. riches did often come through there like bronze or gold,  which meant the needed to gather in groups to form safety down the silk road.

c: in the east might be the correct answer