Answer :
When we distribute, we multiply the number outside of the parenthesis to every number inside the parenthesis.
So we have:
[tex]\sf-6(8+12)[/tex]
[tex]\boxed{\sf(-6)\cdot8+(-6)\cdot12}[/tex]
So we have:
[tex]\sf-6(8+12)[/tex]
[tex]\boxed{\sf(-6)\cdot8+(-6)\cdot12}[/tex]
We use the distribution method that says a(b + c) = a x b a x c, so your answer would be B.