The answer would be D, because a theme is the subject of a talk; piece of writing, thoughts, etc..
Three boys wondered into the woods playing with the white husky chasing after it. As night fall started upon them they lost their way from the town's center but found a new one more like a ghost town version. They all went to their own houses which were torn dark and gloomly, as the dog ran back off into the woods leaving the boys alone to fend for themselves. After each boy has their turn of screaming laughter flooded the town. And neither of them ever went their again....
Simply put, students with good study habits achieve better grades and are more successful in their classes.
