How does President Kennedy describe the history of human innovation? (paragraph 8)
A. All of the discoveries that humans have made in recent years have drastically improved human life.
B. The only important human innovations have taken place in the last 50 years.
C. The pace of discovery in recent history has been extremely quick compared to the whole of recorded history.
D. Throughout human history, the United States has been in direct competition with the U.S.S.R.