The correct answer would be C. None of the above
Here’s how you solve it!
First remove the parentheses so your expression will look like this:
-6-12+4n
Then collect like terms which is -6n and 4n so that you are left with this:
-2n-12
Now you factor out -2 from the expression to get your finally answer:
-2(n+6)
This answer is similar to option B however it is positive while option B is giving you a negative sign.
Hope this helps! :3