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.
The answer is C because the relative pronoun "that" is connecting "friend" to a clause. A relative pronoun connects nouns (friend) to phrases or clauses.
