Answer:
maybe because it looks nicer
but not every school teaches that mate
No please do tell me that they live there omg
Let's cut the chit chat, and formalities. I'm not one for greetings or unnecessary niceties.
The answer is A.
Why?
Because a run-on consists of two or more independent clauses that are not separated by a colon or semicolon.
This is evident in Choice A
I would most likely think the answer is true
The evidence that supports that "black holes are incredibly powerful cosmic forces" are A and C. The other two do not have any say on how powerful a black hole is.