What will this advance mean for mechanics?

原文依据：

flexible-angle tool

extend their arms longer

control their movements much more

weigh less than ever before

工具更轻、角度灵活、更好操作 → 工作更轻松、更容易。

A：他们可以更轻松地工作 → 正确

B：满足更多顾客需求 → 未提及

C：降低开支 → 错误，反而成本更高

D：提高利润 → 未提及