In paragraph 3, kennedy includes these statements “the greater our knowledge increases, the greater our ignorance unfolds.” most likely because

a
kennedy is letting the audience know they don’t know anything and should go back to college.
b
kennedy is setting up his argument that people will never have the knowledge needed to get to space.
c
kennedy is presenting his speech to an audience that includes scientists and professors so he is showing respect to his audience, and acknowledging new discoveries along with how much more can be researched.
d
kennedy wants to persuade only the smart people to him make sure the united states gets to space first.