$\begin{array}{1 1}(A)\;\text{a+b is a root of p(x)=0}\\(B)\;\text{ab is a root of p(x)=0}\\(C)\;\text{Both a+b and ab are root of p(x)=0}\\(D)\;\text{Neither a+b nor ab is a root of p(x)=0}\end{array} $