Respuesta :
Answer:
Metaphor is the answer.
Explanation:
A metaphor is rhetorical device and also a type of comparison. Contrary to the simile, where the comparison is explicit and stated with words such as like or as, a metaphor compares two things that are not really related. In this case, the train is given the characteristics of a horse when the speaker points out how the train goes downhill chasing something. Due to this, metaphor is the answer.