矩阵右乘初等矩阵相当于进行下列哪种初等变换( )。\n \n \n \n \n \n \n

\n \n \n \n A.\n 第一行与第二行互换 \n

\n \n

\n \n \n \n B.\n 第二行与第三行互换\n

\n \n

\n \n \n \n C.\n 第一列与第二列互换 \n

\n \n

\n \n \n \n D.\n 第二列与第三列互换\n