If people knew about the cause of the bubonic plague, they would have definitely acted on it. They might have to distance themselves from various activities. People could compare the Bubonic plague and the Corona Virus because of it wide scope and it’s place of Asian origin.
b.must be the correct answer
Not sure if this is an answer choice but it would be Signal
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After the election of 1890, organized groups supporting farmers called for the formation of a third party that became generally known as the Populist (People's) Party.