#### Answer

A and C

#### Work Step by Step

We are asked to find the polynomials that are the opposite of $8x-6$. Recall that the opposite of a number/term $a$ is the number/term $-a$.
Therefore, if $a=8x-6$, its opposites will be in the form $-a=-(8x-6)$
Therefore, we know that A is the opposite of the given polynomial.
If we use the distributive property, we can further simplify $-a=-1\times(8x-6)=-8x+6$.
Therefore, we know that C is also the opposite of the given polynomial.