Answer:
Option C. is correct choice.
Step-by-step explanation:

Regards: Umer
c is is the answer how much you going to have to graphic
I would say B .
They are not like terms because they are not all the same
6 times a number n is 6n.
In algebra, when number multiply with variables, you don't need a multiplication sign (x). You just put them together like 6n (instead of 6 x n).
Happy to Help!