Jessica Salas, president of Salas Products, is reviewing the warranty policy for her company's new model of automobile batteries. Life tests performed on a sample of 100 batteries indicated: (1) an average life of 80 months, (2) a standard deviation of 15 months, and (3) a bell-shaped battery life distribution. Approximately 68% of the batteries will last between ________________. A) 75 and 85 months B) 70 and 95 months C) 65 and 95 months D) 65 and 85 months