While Traveling the Galaxy in a Spacecraft,you and a Colleague

Multiple Choice

While traveling the galaxy in a spacecraft,you and a colleague set out to investigate the black hole at the center of our galaxy.Your colleague hops aboard an escape pod and drops into a circular orbit around the black hole,maintaining a distance of 1 AU,while you remain much farther away in the spacecraft.After doing some experiments to measure the strength of gravity,your colleague signals his/her results back to you using a green laser.What would you see?

A) His/her signals,because he/she is orbiting well outside the event horizon that lies 0.02 AU from the black hole.
B) His/her signals,but shifted to a much redder wavelength because he/she is close to the event horizon that lies 0.8 AU from the black hole.
C) Nothing,because your colleague has crossed the event horizon that lies 8 AU from the black hole.
D) Nothing,because no light can escape the gravitational pull of a black hole no matter how close he/she is to it.