In the Willowbrook Hepatitis Project

In the Willowbrook hepatitis project,

A) mentally retarded individuals were purposely infected with hepatitis in order to understand how the disease develops.
B) mentally retarded individuals with hepatitis were denied treatment so that researchers could understand the course of hepatitis in untreated individuals.
C) mentally retarded individuals with hepatitis were randomly assigned to receive one of three treatments in order to compare the effectiveness of the different treatments.
D) participants were fully informed about the nature of the research project and had the right to discontinue their participation at any time.