Which of these qualities of good writing involves establishing a main idea and staying on topic throughout the entire text?

How does the author create a feeling of suspense or tension in this story? a) by showing an intimate relationship exists between the father and son b) by characterizing the father as an impulsive man who takes radical chances c) by creating a dark, stormy setting and introducing a mysterious, cursed object d) by showing the mother's revolted reaction to the appearance of the monkey's paw