Read these paragraphs, noting the change of focus.

Carol Harris had been sitting by the telephone all day. Her hopes grew dimmer and dimmer. She had refused to eat, could not concentrate on the book she was pretending to read, and would not speak to anyone in the family. Her mother tried to be patient and understanding because she knew how much Carol wanted to be asked to go to the conference to represent her class. They also knew that the faculty members were, at that very moment, discussing whether to choose Carol, who was class vice-president, or Sharon, who was class secretary. Both girls were well qualified and deserved the award. The Harrises hoped that their daughter, who had worked so hard for this honor, would be chosen. No smiles were seen in the Harris household. All their nerves were stretched as taut as the tight wires in the circus tent.

Everyone jumped when the telephone rang, and no one could move to answer it for a moment. Then Carol, her heart racing, picked up the receiver and whispered, "Hello. This is Carol speaking." Her parents strained toward her, their eyes as anxious as Carol's. "Oh, thank you. Thank you." she cried. She whirled from the phone, her eyes danced, a brilliant smile brightened her face. "They chose me, Mom, Dad. They chose me." The oppressive, gray gloom lifted, and the room was bathed in sunlight as the three Harrises hugged each other and cried, "Whoopee!"

The primary change is a change of _____?