Susan B.Anthony, the American champion of woman's suffrage, was also a participant in the movement to end slavery.
【正确答案】 A
【答案解析】解析：译文为：苏珊．比．安东尼是美国争取妇女参政的倡导者，也是废奴运动的参与者。participant参与者。partaker参与者；observer观察者；leader领导者；supporter支持者。