It is so they can make medicine to fight it
I am pretty sure that description above belongs to Nancy Lammeter. I choose this option because, as far as I remember, both Silas Marner and Dunstan Cass are morally-weakers. What about Godfrey Cass - he is just opposite to Dunstan which does not concides with the description. I think it's clear, regards!
Answer:
A) Every time a certain church bell rings, something terrible happens to Guy
Explanation:
It's the most logical choice.
Spoken is the answer to number one
C. In respone to problems