please help me!

What factors made the Tang capital of Chang'an a center of culture and trade? Select all that apply.
A.It welcomed foreigners and their beliefs.
B.It based its trade on the merit system.
C.It was the center of silk production.
D.It was located at one end of the Silk Road.
E.It was located on the South China Sea.

In what way was the government of the Tang and Song dynasties the same?
A.Both used a civil service exam to select officials.
B.Both closed Chinese ports to limit foreign trade.
C.Both gave control to powerful military leaders.
D.Both made officials change positions every three years.

What happened as a result of increased trade during the Tang and Song dynasties?
A.Interaction with other empires resulted in military conflicts.
B. The demand for more goods was too great and farmers couldn’t keep up with production.
C.The economy prospered and experienced growth in many different industries.
D.The production of copper coins increased to keep up with the demands of trade.
i need a good grade so pleaaase help me answer these question.
thanks!

Tang & song. 1) A and D. 2) A. 3) C

YEA! thanks......

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#1

A
It welcomed foreigners and their beliefs.

It was located at one end of the Silk Road.

#2

A
Both used a civil service exam to select officials.

#3

A
The economy prospered and experienced growth in many different industries.

A= Answer(s)

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well then could you help me answer the question then

What factors made the Tang capital of Chang'an a center of culture and trade? Select all that apply. A. It welcomed foreigners and their beliefs. B. It based its trade on the merit system. C. It was the center of silk production. D. It was located at one end of the Silk Road. E. It was located on the South China Sea. I need help

thx