Read the following excerpt from President John F. Kennedy's "We Choose to Go to the Moon" speech. Then, answer the question that follows.
We have felt the ground shake and the air shattered by the testing of a Saturn C-1 booster rocket, many times as powerful as the Atlas which launched John Glenn, generating power equivalent to 10,000 automobiles with their accelerators on the floor. We have seen the site where the F-1 rocket engines, each one as powerful as all eight engines of the Saturn combined, will be clustered together to make the advanced Saturn missile, assembled in a new building to be built at Cape Canaveral as tall as a 48-story structure, as wide as a city block, and as long as two lengths of this field.
Which rhetorical appeal is Kennedy using to persuade the audience to change their perspective on space exploration?
a) Ethos: he is using expert testimony to provide credibility to his argument
b) Logos: he is using facts to convince them of the need to fund a space program
c) Pathos: he is using emotion to urge the audience of the need to explore space
d) None: he is simply using his opinion