The Supermassive Black Hole Candidate in the Center of the Galaxy

Multiple Choice

The supermassive black hole candidate in the center of the galaxy NGC 4261 is estimated to have a mass of 1.2 * 10⁹ M_Sun. What is the Schwarzschild radius of this black hole?

A) 1.6* 10⁹ meters, a little larger than the Sun
B) 24 au, a little larger than Jupiter's orbit
C) 0.95 pc, more than half the distance to the nearest star
D) 1600 pc, about one-tenth of the way across the Milky Way Galaxy