I think you might've forgotten something. There is no labels, pictures, or any options. Add some more stuff and I'd be able to help out.
Answer:
In space
Explanation:
Because it would be weird if it would be in earth's atmosphere, and hitting the sun is rare. Most likely to come from space
B because it’s talking about the tree itself. Saying that it’s plants would divert it to a different plant. The cells of the wood is what makes the tree and is relevant to the question