I think it is C because A is missing commas, B doesn't need them and D doesn't need one.
https://www.goodreads.com/quotes/599702-i-wish-this-story-were-different-i-wish-it-were
The last options seems right. the one that is " Trees that are not native to North Texas, are often killed by heat and drought. "
They can protect you when an intruder breaks in your house