Select the correct answer. Read the passage. What tone does President Eisenhower use in this speech and how does the tone affect the purpose of his speech? A. a playful tone to persuade the world to disregard the isolated instances when the United States used nuclear technology B. a pacifying tone to convince the audience that the United States will use nuclear technology for peaceful purposes and not for destruction C. a pessimistic tone to indicate that the United States regrets having invented nuclear technology D. a rational tone to describe the failure of the United States to employ nuclear technology successfully E. an indignant tone to criticize the world for its mistrust in the United States to use nuclear technology peacefully