In Order to Protect Prisoners Since They Are a Special

In order to protect prisoners since they are a special population,researchers should do all of the following except

A) make sure there are no repercussions if prisoners choose not to participate in the research
B) offer the prisoners money to participate
C) have at least one member of the institutional review board be either a prisoner or someone designated to represent the interests of the prisoners
D) do not expose prisoners to risks that would be considered excessive for non-prison subjects