Ineed answering these in full sentences.

1. what facts about the event does your reader need to have in order to understand the event’s importance to new citizens?
2. why is this event important for new citizens to understand?
3. what perspective do your primary sources bring to understanding the event?
4. how do your primary sources you make your argument?

1. The reader must have a basic background about the topic that is being discussed. If not, then the likely chances of them understand will be little to none. 

2. Elaborate on who these 'new citizens' are, so far I know nothing about this topic.

3. Primary sources give the person a steady ground to understand said topic and have a better outcome of factual information.

4. They help make the argument because of factual evidence that can be used to counteract the biased/nonbiased POV of the reader(s). 

A)China

Explanation:

The simplest way to summarize the millenary history of Sino-Japanese relations is to remember that China has contributed many positive things to Japan while Japanese contributions to Chinese history have been smaller.

Japan is an island country, an archipelago fostered by thousands of islands, but its history is developed from the largest of the four main islands, Honshu. From there, the first settlers of the Mongol race arrive from the continent and from there they move the previous inhabitants towards the north. The newcomers of the continent bring customs that they then develop to transform them into something singular, differentiated from the original. And that will be a constant throughout Japanese history. Writing, religion or many culinary customs will come to Japan from China to become something different, Japanese. That is why the Japanese write with Chinese characters, many of them profess Chinese branches of Buddhism and usually eat a lot of dishes that have arisen in China, but the Japanese language has little more to do with the Chinese than the script, the Japanese religiosity is not he understands without the contribution of Shintoism, the autochthonous religion, and there is practically no Chinese dish that the Japanese have not transformed, according to them to improve it.