As a Jew myself, I had heard (not knowing for sure if it’s factual) that Jews who ate Kosher food did not get the Bubonic plague. Presumably, this was due to the fact that pork carried the virus of this particular plague. It also might have accounted for the fact that non-Jews were suspicious of why the Jews were not as affected.
Answer:
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The answer to this question will be B
Banks were going bankrupt and the whole banking system was facing a systematic risk