Which of these astronauts did NOT walk on the Moon?

Which of these astronauts did NOT walk on the Moon?

the astronaut who famously traveled to the Moon but did not walk on its surface was Michael Collins. Michael Collins served as the Command Module Pilot (CMP) for the historic Apollo 11 mission in July 1969, while his crewmates, Neil Armstrong and Buzz Aldrin, were the ones who descended to the lunar surface. Collins was responsible for piloting the Command Module (Columbia), the main spacecraft that remained in orbit around the Moon.