C is the correct answer I think.
Hope this helps!!!
The correct answer is A.
The sentence should be written like this: <span>Sadly, even after that water is found, only some of it's clean and safe enough to drink.
Because the sentence is saying "only some of IT IS clean and safe enough to drink," an apostrophe should be used.
</span>
Answer:
The main themes in "A Very Old Man with Enormous Wings" are doubt, ambiguity, and the problem of interpretation. Doubt and ambiguity: A variety of theories about the old man are presented: some believe he's an angel, while others view him as a member of a new race.