No light can escape from it. If the way we see things and colors is the light being absorbed and reflected, we cannot see a black hole if no light can be reflected. The only way scientists can tell if a black hole is present is the impact of it to the surrounding stars and gas.
D. By supporting opinions with evidence
If it were only your words it may not seem as important rather than having evidence back up what you are saying
Explanation:
b.Some authors do not really have a purpose for writing.