In which excerpt does the speaker develop the idea that space exploration has already had positive results? A
In the last 24 hours we have felt the ground shake and the air shattered by the testing of a Saturn C-1 booster rocket.
B
Within these last 19 months at least 45 satellites have circled the Earth. Some 40 of them were "made in the United States of America" and they were far more sophisticated and supplied far more knowledge to the people of the world than those of the Soviet Union.
C
The growth of our science and education will grow from new knowledge of our universe and environment, from new ways of learning and mapping and observation. They will be enriched by new tools and computers for businesses, medicine, the home and the school.
D
Well, space is there, and we're going to climb it, and the moon and the planets are there, and new hopes for knowledge and peace are there.