'Finally' is the answer the others don't make sense if you try to read them with the rest of the sentence.
Answer:
Theme: Nature can be a source of physical and spiritual strength
Topic: Nature
Explanation:
The theme that “ The hummingbird that lived through winter” and “Spring harvest of snow peas” share is that nature can be a source of physical and spiritual strength.
C it resolves the main conflict of the story
