of ones own 的使用方法

This is not a bad idea _______ .

A.in itself

B.of its own

C.by itself

D.for its own

结合答案，这句话该怎么样翻译。另外为何B项错误？

This is not a bad idea _______ .

A.in itself

B.of its own

C.by itself

D.for its own

结合答案，这句话该怎么样翻译。另外为何B项错误？

【答】A.in itself （其本身；本来）是答案。比如：

Making money is not evil in itself.赚钱本身并非件坏事。（摘自《英汉多功能词典》新编升级版）