Which sentence uses a semicolon correctly? A) Mrs. Lundey noted that half the class was out with the flu; therefore, she postponed the exam until next week. B) Our plane was delayed for two hours because of the storm therefore; we missed our connecting flight. C) All of her short life; Ruth had wanted to be a surgeon and do dramatic life-saving surgeries for patients. D) Even though the sweatshirt was tattered and torn; our little dog loved to curl up in it at night to sleep.