If the zeroes of the polynomial $f(x)=x^3-12x^2+39x-28$ is in A.P,then its zeroes are _____

Question

$\begin{array}{1 1}(A) \;-7,4,1\\(B)\;-7,-4,-1\\(C)\;7,-4,1\\(D)\;7,4,1\end{array} $