The answer is C) Pathos and ethos
The conjunction would be c. and
and is a connecting conjunction of two ideas in the same sentence
The fog is doing the same thing as a cat.
The correct answer is B. shared ideas.
Works written during the same literary movement are connected to each other by the same motifs and general feelings about that particular era. For example, during Romanticism, it was popular for authors and their protagonists to be solitary heroes, who are always misunderstood, but quite passionate about their work.
In "The Second Coming", Yeats alludes to the second coming of Jesus Christ and the book of Revelations. His theory on gyres and human life cycles link to this idea that history will repeat itself. There was a WWI so there will be a WWII.