Answer:
C.
Explanation:
From the mid-1950s to the mid-1960s, Southam conducted clinical research on people without their informed consent, in which he injected cancer cells (HeLa cells) into their skin, to see if their immune system would reject the cancer cells or if the cells would grow. He did this to patients under his care or others' care, and to prisoners. In 1963, doctors Avir Kagan, David Leichter and Perry Fersko of Jewish Chronic Disease Hospital objected to the lack of consent in his experiments.
