There are several words you can use, although the one that fits the question best out of all the choices is: Best.
Can you provide the story, the question is out of context.
Newspapers where created and weren't as interesting as they are today.
So basically writing it as a fraction in 5 over 8 practically means 5 divided by 8. so then 0.625 actually IS ALREADY the decimal
The best answer is A.
although B and C are correct, they mostly miss the point of the sentence.