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.
Theme is a main idea or an underlying meaning of a literary work, which may be stated directly or
indirectly.
<h3>What is a Theme?</h3>
Theme is the central or main idea in literature or literary work which can be pointed directly or indirectly. novels, stories, poems, and other literary works consist of one or more theme.
A theme can be revenge, love, hatred and so on.
Therefore, Theme is a main idea or an underlying meaning of a literary work, which may be stated directly or indirectly.
Learn more on Theme from the link below.
brainly.com/question/25336781.
In Decdember, in the morning. You can see this in the first line of the story.