参考答案

正确答案：A
解析：细节推断题。依第四段最后一句中的“But our task has been one of education because up until now，bicycle manufacturer were unaware of the problem”可知，生产商还没有意识到问题的严重性；依第五段第一句The team has also approached the US Consumer Product Safety Commission to try to persuade manufacturers to adopt the new design可知，他们团队要联合美国消费品安全委员会来劝说生产商。综合这两点可以推断出这项工作并不容易完成，故A为正确答案。