Once there was a family there were two young boys a little and a single mom. They also had a cat named Luna. The cat made the whole family happy but one day the cat disapeared the family didn't know where she went they were all very sad. But then one day one of the boys went outside to look for the cat but he found nothing. The next the other boy went out he also found no trace of the cat. On the last day the little girl went out. She stumbled by an abandoned house and she heard a cat meowing from inside so she went in. When she searched through the house she found her orange cat Luna. She ran back home in excitement and when she came in the door she screamed "I found Luna I found Luna" everyone looked so happy. The End.
.289659 leagues is in 1 mile
To figure out your initual focus on whatever your writing
Technically, all of these answers are ways to revise your work. I would go with B, Run a spell check and correct errors because it looks like the most accurate way to edit documents.