It would be <span>Some nations agreed to disarmament but some did not. Nations which has large armies and weapons usually doesn't agree in disarmament because it will give a strain and more effort are required to disband to follow the disarmament treaty. Also those nations who have an advantage in military power would not agree to lessen its power for the lesser power.</span>
B. It was a center of trade on the Mediterranean
For more than 1000 years Constantinople was the capital of the Byzantine empire. It had an strategic position for trade, and many trading routes passed through there. It was the biggest and richest city in all of Europe.
It is not really certain as to when the writing systems in China started but there are evidence that during the Shang dynasty, pictographs and ideographs were already inscribed in bones although the system was already quite complex that it could have well originated many years before.
Answer:
Examples of a secondary source are: Publications such as textbooks, magazine articles, book reviews, commentaries, encyclopedias, almanacs.