When x^9\minus{}x is factored as completely as possible into polynomials and monomials with integral coefficients, the number of factors is:
<spanclass=′latex−bold′>(A)</span>more than 5<spanclass=′latex−bold′>(B)</span>5<spanclass=′latex−bold′>(C)</span>4<spanclass=′latex−bold′>(D)</span>3<spanclass=′latex−bold′>(E)</span>2