It is an example of 3. personification.
Personification is a figure of speech where non-human entities are given human abilities or characteristics. So, flowers usually cannot smile (it is something that humans/animals can do), which is why it is a personification. Carpe Diem is the theme of this poem, but not the correct answer here.
Hayes Davis wrote this excellent poem regarding driving where the two main characters of the poem are the boy and his father. The father teaches the boy to drive. Explanation: The speaker talks about the confidence that the father has in his son and how on empty roads he lets him drive
