The correct answer is D. Lawyers and private detectives
Explanation:
Being self-employed implies you are not hired by an employer, company or similar but you work on your own and in this way you obtain profits. Additionally, some professionals cannot be self-employed while others can choose between being employees or being self-employed, for example, a soldier cannot be self-employed as all soldiers belong to the army; however, a doctor can work as part of a hospital or by himself.
According to this, the two professionals of criminal justice that may be self-employed are lawyers and private detectives, because these two professionals can work independently which means they can work on specific cases without belonging to a company or law office.
