If $f(x)=3x^3+x^2-x-12,$

what would be the $\frac{p}{q}$ list of

possible rational roots?

a$)+-1,3,\frac{1}{2},\frac{1}{3},\frac{1}{4},\frac{1}{6},\frac{1}{12},\frac{3}{2},\frac{3}{4}$

b$)+-1,2,3,4,6,12,\frac{1}{3},\frac{2}{3},\frac{4}{3}$

c$)+-1,2,3,4,6,12$

d$)1,2,3,4,6,12,\frac{1}{3},\frac{2}{3},\frac{4}{3}$