When NASA and a Group of Astronomers Sent Up a Spacecraft

When NASA and a group of astronomers sent up a spacecraft designed to find planets orbiting other stars, they named it after Kepler. Why was this an appropriate name?

A) Kepler used his telescope to find the first planet orbiting another star
B) Kepler was the first person to express the law of universal gravity in mathematical terms
C) Kepler figured out the rules of planetary motion, which planets in our solar system and planets elsewhere must obey
D) Kepler was the first person to suggest how to launch rockets into space
E) Kepler designed the first telescope ever built
3) 2 Newton's Great Synthesis