The correct option is B.
Corn was the major diet that was eaten then and the spread of corn led to development in the form of greater urban density and more complex social organisation. Maize cultivation led to the development of irrigation system which also led to building of village and towns.
The answer is D. Austria had broken an agreement made with Germany
The United States and China are know to trade a lot of goods among one another, which likely the reason why China and the United States relationship improved.
Wiesel was a Jew whose home town of Sighet was occupied by the Hungarians during the second world war. He told his story about how he has been treated brutally by the hands of the Nazis. Speaking the truth, which shaken him emotionally, means everything to him. ... Annan is also held responsible for telling the truth.
C. His crew was the first to circumnavigate the globe.