Answer:
to help readers evaluate a topic or discover a misconception.
The theme is the moral or the lesson of the story. After reading the story, which of the answers gives you a lesson that is universal (can apply to anyone) and fits with the story. For example, one could say that the moral of Finding Nemo is "always listen to your parents as they know best". No specific details like names or places are given in the theme.
I am not quite sure what you want because that is not a question. Therefore there cannot be an answer. But, if you were looking for an opinion on that sentence I can give you that. First of all, caressed may not be the right word to use. You could go into more detail though.
Such as:
The sun looked down upon the plant, it reached out and lifted it up from the rain.
It could be along those lines, I hope that helps I really didn't know what you wanted to hear.
