People revolted and set up a new government, the second republic.
Jimmy Carter while in Presidency was faced with five challenges which include; Inflation, Slow growth, Unemployment, Stagflation, and The second oil shock. This made it so President Carter persuaded the people into conservation and less spending. Companies were made to only pay 7% with any contracts they made new and old and the oil shock, which came from the iran revolution, made it so the people became more conservative and made oil cheaper by having to not pay for what wasn't used.
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The correct answer is option C: someone diagnosed with smallpox.
The person that would have been most grateful for the work of 19th-century scientist Edward Jenner, would be someone diagnosed with smallpox because Jenner was who discovered the first vaccine against the smallpox virus. Moreover, this disease that was widely spread in the 18th century and killed many people.