请问

问题如下：

High ethical standards are likely distinguishing features of which of the following body?

选项：

A.

Craft guilds

B.

Trade bodies

C.

Professional bodies

解释：

C is correct. High ethical standards distinguish professions from the craft guilds or trade bodies. Unlike trade bodies, professional bodies also typically have a mission to serve society and enforce professional conduct rules for practitioners.

C为正确选项。高标准的道德要求使专业性强的从业人人员与手工业或贸易业的人员不同。不像贸易从业者，专业性强的从业人员有着服务社会的使命，所以需要严格的专业制度来监管参与者。