Which of the Following Best Explains the Idea of a Refutation

Which of the following best explains the idea of a refutation by logical analogy?

A) An analogy between two arguments, one of which is obviously flawed, intended to show that the other argument is also flawed.
B) An analogy between two arguments by analogy, intended to show that because the first one is cogent, so is the second.
C) An analogy between an objection to one argument and an objection to another, intended to show that the second objection succeeds.
D) An analogy between two actions, one of which is clearly morally wrong, intended to show that the other action is morally wrong.