Which statement best describes the purpose of the horse-drawn carriage imagery in "Because I Could Not Stop for Death." 1. The image reinforces the idea that the journey towards death can be long and monotonous like a carriage ride. 2. The imagery illustrates the speaker’s view that horses are ghostly and intimidating animals that remind her of death. 3. The imagery illustrates that horses’ heads are symbolic of the speaker’s triumph over death’s grip. 4. The imagery introduces the idea that death is a natural and ordinary part of one’s journey through life.