The Black Death was a disease. And was spread when packages were sent from Japan to the USA. And from there spread to airports and travel rings.
The answer is (A) economic protectionism and regulation.
This type of vote is know as a Plebiscites
Basically, the Cultural Revolution was that Mao Zedong, the Former Chairman of the Communist Party of China, wanted a classless society. Following this, Mao launched the Great Proletarian Cultural Revolution.
His thoughts called<em> 'The Little Red Book'</em> became some sort of Bible for most if not all Chinese Communists. He soon created a group called the 'Red Guards' to go throughout China and eliminate the <em>'Four Olds'</em> which was a term used to refer to the attempts of Communists to destroy Chinese cultures and beliefs.
- Old culture, customs, and habits.
They were commanded to destroy temples, music, any books, and they were instead replaced street signs with revolutionary names. Many citizens were displeased with this policy.
Island Hopping
Island hopping or leap frogging was the military strategy used by the Allies in the Pacific War against Japan and by the Axis powers in WWII