单选题 It can be concluded from the passage that the spirit of the progressive movement is the spirit ______.

A、 to end political corruption
B、 to minimize social and economic disorder
C、 to promote free competition
D、 to reform all the social evils and problems

【正确答案】 B

【答案解析】从第二段改革者的各项改革内容end abuses of power，replace corrupt power和 apply principles to all economic，social，and political institutions可判断他们试图改变所有的社会邪恶和问题。