You are presented with the quiz "Stars that have mass larger than 25 solar masses can form what?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "ablack hole is formed by a high-mass star collapses" and "if a star has a mass larger than 25 solar masses, it collapses into a black hole". 

So, what's the best answer to the question?


 

   black holes        