Fact 1: Ablack hole is formed by a high-mass star collapses. Fact 2: Collapsed stars are dead stars. Given the two facts above, black holes are formed from _ stars.?

Pick from:
[A]. small.
[B]. dead.
[C]. new.
[D]. SO2.
[E]. deadly.
[F]. gas.
[G]. matter.
[H]. falling.
The answer is:
[B].