Answer: B) It shows how sensitive to change prisoners may be.
Explanation: A hyperbole is a type of figurative language that consists in exaggerating an event or a statement. In the given excerpt we can see an example of hyperbole in the phrase "...who could hear the splash of the drop of water that every hour fell from the roof of his dungeon." This hyperbole shows how sensitive to change prisoners may be, so the correct answer is option B.