How many polynomials of the form x5+ax4+bx3+cx2+dx+2020, where a, b, c, and d are real numbers, have the property that whenever r is a root, so is 2−1+i3⋅r? (Note that i=−1)<spanclass=′latex−bold′>(A)</span>0<spanclass=′latex−bold′>(B)</span>1<spanclass=′latex−bold′>(C)</span>2<spanclass=′latex−bold′>(D)</span>3<spanclass=′latex−bold′>(E)</span>4