若$${{\left( {{\log }_{2}}3 \right)}^{x}}-{{\left( {{\log }_{5}}3 \right)}^{x}}\geqslant {{\left( {{\log }_{2}}3 \right)}^{-y}}-{{\left( {{\log }_{5}}3 \right)}^{-y}}$$，则（  ）．
选项为:A:$$x-y\geqslant 0$$  B:$$x+y\geqslant 0$$  C:$$x-y\leqslant 0$$  D:$$x+y\leqslant 0$$  请回答其中一个选项.