The answer for this one is Simple Subject.
I think that a big part of the suspense in "The Pit and Pendulum" comes from two sources.
The first is the unknown. The reader has no idea why the protagonist has been arrested and sentenced. The opening paragraphs have him in and out of conscious thought all while hallucinating. We don't know who he is or what he has done to deserve punishment. Once he is in his cell, the unknown continues.
Analogy is similarity between things.
In this case, an analogy is the last example - Apple is to tree as grape is to vine.
Answer:
Elizabeth
Explanation:
Elizabeth (who never lies, according to John) is called to confirm John's testimony. She says she put Abigail out of the house because she thought John fancied (liked) Abigail.
Barren Means too poor to produce much or any vegetation.