The product of two consecutive positive integers is $240$.The quadratic equation whose roots of these integers is _____

Question

$\begin{array}{1 1}(A) \; x^2-x+240=0\\(B)\;x^2-x-240=0\\(C)\;x^2+x-240=0 \\(D)\;x^2+x+240=0 \end{array}$