Biggest ever black hole has been found in which galaxy ?
[A]Andromeda Galaxy
[B]Galaxy Henize 2-10
[C]Galaxy NGC 1277
[D]Galaxy NGC 4889

Galaxy NGC 1277
Galaxy NGC 1277 is a small, flattened galaxy contains one of the most massive central black holes ever found. At 17 billion solar masses, the black hole weighs an extraordinary 14% of the total galaxy mass.