There is no link or nothing connected.
Answer:
Interestingly enough, the idea that life has many ups and downs is a metaphor, too. As in the roller coaster metaphor, the idea of ups and downs is not literal as we apply it to our lives.
Explanation:
Answer: It should be B foil
Explanation: In fiction, a foil is a character who contrasts with another character, usually the protagonist, to highlight qualities of the other character. In some cases, a subplot can be used as a foil to the main plot. This is especially true in the case of metafiction and the "story within a story" motif.