How does President Kennedy frame the history of progress in this speech?
A. He condenses the past 50,000 years of human history
to showcase the rapidity of recent technological
progress.
B. He condenses the past 50,000 years of human history
to highlight America's major part in recent progress
and industrialization.
C. He compares the shortness of known human history
to the lengthiness of pre-history, effectively showing
us that the future is a wide expanse to be found in
space.
D. He compares the shortness of known human history
to the lengthiness of pre-history, effectively showing
us that progress as we know it has just started.