Answer :
Time of service: incumbency means as it is used in this excerpt. Thus, option C is the correct option.
What is the message of Kennedy's address at Rice University?
Kennedy spoke at Rice University to encourage people to support NASA's moon program. Kennedy pledged to send an American astronaut to the moon before the end of the 1960s in what became known as his "We Choose the Moon" address.
In conclusion, we must undertake this endeavor in order to answer these riddles, solve them for the welfare of all mankind, and become the world's premier spacefaring country in order to maintain our leadership in research and industry, our aspirations for peace and security, and our commitments to both ourselves and others.
Beyond those assembled in front of him, his audience included people from all across the world. He prepared for this occasion with the intention of inspiring the country as well as communicating the difficulties of the Cold War and his wish for peace in the nuclear era to other countries. He also wished to keep it short.
Learn more about Kennedy's address at Rice University here:
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