Answer: If you're asking which might be easier to write about I would say exposure because it uses more advanced words which make it sound nicer to write about and it also is a little easier to understand what it is talking about which should help you with writing on it. I personally prefer Exposure but it's your choice.
Explanation:
B.
How could you find something if you don't know what you're looking for?
Answer:
D. agreement
Explanation:
It wouldn't be "agreements" because it says "a final" which suggests that there is only 1 agreement.
It wouldn't be "agree" because it wouldn't read right.
It wouldn't be "agreed" because that is past tense and they haven't yet reached an agreement.
So it would be D. agreement
Hope this helps :)