The answer to your question is D) √5x/5x.
I hoped this helped!
I think B should be the answer
All of the answer choices that you are given are incorrect. I have calculated it in all different ways and get the same thing and it is none of those. The correct answer would be -75 though.
This would be 2 because of the rounding rules of it being 5 and up round up and below 5 round down. I hope I helped!
1.64
2. 95%
Hope this helps you.