I have one more confusing question regarding this. And Thank you Ms.Sue for answering the last question!

Franklin's humor in Witch Trial at Mt. Holly depends upon the belief that...

a)the belief that religion takes precedence over science
b)the belief that the physical laws of the universes, such as gravity, take precedence over religion
c)the belief that the Bible will outweigh an innocent person

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from looking at my notes,
Here the accused must sit on a balance scale with a Bible on one side, and if they are heavier than the Bible, they are guilty. In the world of physical science, they would be found guilty every time. The second test is dunking, and the guilty will float, but in this case the heavy garments keep them afloat as they are, of course, in a natural rather than a spiritual world. The judge suggests that the test be repeated naked in the spring.
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He is basically comparing the guilty with science, right? So is the correct answer A?

the answer is definitely not c that's for sure

I'd agree with you on the answer A since Franklin is sorta mocking the idea of witchcraft etc.