单项选择题
which of the following is the equivalent for“甘草酸”（）
A．licoricece B．glacialacetic acid C．glycyrrhetinic acid D．sweet saponin E．glycyrrhetinic acid glycoside
A．酚 B．酚酞 C．邻苯酚 D．甲基红 E．溴酚蓝