D. the reader. The reader will always be the one you're writing for, since the idea of writing, especially academic writing, is usually meant for others to read.
Personification is the figure of speech which gives life to inanimate objects.
Examples of personification are:
The flowers are dancing with the breeze.
The wind that gives you a cold embrace.
Hyperbole is used to exaggerate things. Metaphor and simile are used to compare two unlike things.
Using my common sense and a bit of knowledge in English, I can infer that she feels strongly about her garden and loves it very much. This leads me to believe that she is a loving and caring character. If something is described vividly this generally means that 1) this is a good writer 2) they feel strongly about what they are writing 3) both a good writer and a strong feeling
I would say that the answer is probably 3. Hope this helped!
-TTL