You are presented with the question "what high-mass object forms black holes?" and the following answer choices: 
- layers of fat
 - an object
 - dead stars
 - moons
 - graptolites
 - shooting stars
 - milky way
 - It expands

Now knowing that ablack hole is formed by a high-mass star collapses and collapsed stars are dead stars, choose the best answer.


 

   dead stars      