Question

Which best corrects the run-on sentence?

Auroras illuminate the northern horizon they have a greenish glow or sometimes a faint red one

Answer 1

A.
Auroras illuminate. The northern horizon in a greenish glow and sometimes a faint red one.







B.
Auroras illuminate the northern horizon. They have a greenish glow or sometimes a faint red one.







C.
Auroras illuminate the northern horizon, a greenish glow or sometimes a faint red one.







D.
Auroras illuminate the northern horizon. With a greenish glow or sometimes a faint red one.

Answer 2

I think it's B if I'm not mistaken .

Answer 3

I agree, it would work best as Auroras illuminate the northern horizon with a greenish glow, sometimes a faint red one, but I guess you just have to choose what you're given