I think it’s c. I hope this helps
Isolationism
because they are isolating themselves from the rest of the world. they wanted to focus on protecting themselves from the north so a takeover from the Mongols would never happen again. thus they stopped making ships and cut themselves off from everyone else.
It should be called a "warm war" as neither it was fully unarmed war to be called cold war, nor it was a formally full fledged war to be called hot war.
Answer:
Cormac Ó Gráda 02 September 2019
Of WWII’s warring powers only the Soviet Union suffered mass starvation, but as this column, part of a Vox debate on the economics of WWII, describes, it is a measure of the war’s global reach that 20 to 25 million civilians died of hunger or hunger-related diseases outside Europe. In Britain effective rationing ensured a ‘fair’ distribution of food supplies throughout the war and in Germany the famine conditions experienced in 1918-19 were not replicated, but Japan was facing semi-starvation at war’s end. In Europe, apart from Greece and the Soviet Union, famine mortality was modest, but 3-5% of the populations of faraway Bengal, Henan, and Java perished.