An Astronaut Traveling at Very High Speeds to Proxima Centauri

An astronaut traveling at very high speeds to Proxima Centauri, which is 4.3 light-years from Earth, would arrive in fewer than 4.3 years, from his or her perspective.This is because

A) he or she can travel faster than the speed of light.
B) a light-year is longer than the distance light travels in 1 year.
C) radioactive particles (muons) will interfere with the astronaut's clock.
D) Proxima Centauri appears to be farther than it is due to the travel time of light.
E) the astronaut will measure a shorter distance than 4.3 light-years.