Read the passage from The American Plague. All along the way Jefferson chafed at the jump in prices brought about by "harpies who prey upon travelers" returning to Philadelphia. Inns on the route had upped their rates; ferrymen were charging extra to transport people and carriages across rivers. In the end, Jefferson estimated that it cost him nearly eighty dollars just to get to Germantown.

What was the cause of the jump in prices?

the cost of ferry boats
the yellow fever outbreak
the number of people traveling
the amount of heat, rain, and dust

The correct answer is the yellow fever outbreak!

Explanation:

The number of people traveling leads to the jump in ferry boat prices, but the reason behind people traveling is the heat, rain, and dust which leads to the yellow fever outbreak which is the main cause. So, because of the yellow fever outbreak people are traveling, prices rise, and in result the fever spreads. Hope this makes sense.

Plus got it right on edge 2021!!!

martin luther believed that selling indulgences was wrong and gave people a license to sin. the roman catholic church used the practice of indulgences to raise money for major building projects.