在工作中谨慎小心会大有裨益。 A. It pays a lot to be careful in work. B. It does pays a lot to be careful in work.

在工作中谨慎小心会大有裨益。 A. It pays a lot to be careful in work. B. It does pays a lot to be careful in work. C. It careful a lot to be pays in work. D. It to be careful pays a lot in work.

正确答案是：A. It pays a lot to be careful in work. ✅

解释：

“It pays a lot to do something” 是固定表达，意思是“做某事会有很大好处 / 大有裨益”。

“It does pays” 是错误的，因为助动词 does 后面动词用原形，所以 does pay 才对。

其他选项 C 和 D 语序和语法都不正确。

所以标准、自然的翻译是 A。