Final answer:
Ravensbrück was unique as it was a concentration camp exclusively for women, contrasting with other camps like Auschwitz, which housed both men and women for forced labor and subjected them to medical experiments. The correct option is (D).
Step-by-step explanation:
Ravensbrück was different from most other concentration camps because it was a concentration camp exclusively for women. Unlike camps like Auschwitz, which became well-known for its extensive use as a death camp where many Jews from Western Europe were sent to die and some were used for forced labor or medical experiments, Ravensbrück was particularly unique in that it primarily housed female prisoners. Auschwitz also greatly differed from other extermination camps due to its large gas chambers and more permanent structures.
While in camps like Chelmno, the focus was on immediate mass murder, and gas chambers were used to kill the prisoners within hours of their arrival, Auschwitz housed prisoners who were put to work. These prisoners faced extreme conditions and high mortality but were not immediately sent to their deaths upon arrival. This allowed for a relatively larger number of survivors who provided much information about life within such camps.