Answer: A) Personification.
Step-by-step explanation: personification is a figure of speech that consists in giving human characteristics to nonhuman objects, or also describing an abstract concept using human features, as many figures of speech, it is used to create an image in the reader's mind. The given expression "smiling spring" is a clear example of personification because it is giving a human characteristic (the ability to smile) to a nonhuman thing (spring).