Read the excerpt from "Clara Barton's Childhood." From that time on, through long months , she was the member of the family whose entire thought and care was centered around her brother. David was very sick for such a long time that it seemed as if he could never rally. Hour after hour, and day after day, she sat by his bedside, his thin hand clasped in her strong one. "Will I ever get better?" he would ask sometimes several times a day. She practically shut herselfup in that sick-room for two whole vears. In this excerpt , the author characterize s Clara's actions to reveal that Clara is afraid that David will not survive. D is unwavering in her goal to help heal David. dislikes acting as David's nurse. wants credit for taking over David's care.