Choose from the column on the right the item that corresponds to the type of polynomial. Choices may be used more than once.
a) Polynomial with a common factor
b) Difference of two squares
c) Sum of two cubes
d) Difference of two cubes
e) Perfect-square trinomial
I) None of these
$$\text{_____}8 a^{3}-b^{6} c^{9}$$