A; because the narrator is usually a character in a story, who interacts with other characters.
Switching from chains to cables in the building of roller coasters was important because cables are less likely to snap when hauling several tons of roller coaster cars full of people. Chains are made of linked, welded pieces of metal that can easily snap if they pull too much. Cables, while they can snap, are much less likely to do so, because they're a stretch of fibers, be it metal or other, without any potential weak spots.
Answer:
Simile: comparing a float aways down a stream to time
Metamorphosis: when it said the life, youth, wealth was renowned and the processes to what it was. that was the big change.
Giving inanimate objects life like things . such as saying "the tree spoke to me"
