Peak and top because crest means the top of mountain or hill
The answer should be A. This is because the other sentences don't need any word except for the first word in its sentence.
In the answer choice A, partners in Water partners should be capitalized because it is an organization. Therefore the sentence should be...
"<span>It was started in 2009 by actor Matt Damon and Gary White, the co-founder of Water Partners."</span>
The correct answer is C unlike the others, it represent the anxious mood
B would be youre answer and wassup bro. Hope this helps!!