Which of the Following Is NOT Part of the Growing

Multiple Choice

Which of the following is NOT part of the growing chain of evidence that makes many astronomers suspect there is a black hole at the very center of the Milky Way Galaxy?

A) the motion of stars close to the center indicates that there is a mass of 4.6 million solar masses inside their orbits
B) the Hubble Space Telescope has shown us a visible-light image of an accretion disk at the center of the Galaxy
C) the existence of a strong radio source at the center whose size appears to be no larger than Jupiter's orbit
D) the fact that Sagittarius A is a stationary radio source, while objects around it appear to be in motion
E) the observation that matter in the central region continues to be falling in toward the center