many became highly effective organizers, gaining the respect of even racist White unionists by winning victories for White as well as African American workers.
这个题A选项成立的话,政府新的减速坎则无法有效的解决人们超速的问题 (speed bump can reduce 20-25% but people travel at more than 25% over speed limit). 这样的话政府的减速坎不就没有用了吗?
我觉得B 选项虽然说是一个drawback,但是和政府的初衷(让大家follow speed limit)没有什么关系
many became highly effective organizers, gaining the respect of even racist White unionists by winning victories for White as well as African American workers.