Final answer:
The men of Reserve Police Battalion 101 used the pretext of resettlement, but it is likely that at least some members knew the Jews were being deported to extermination camps, not resettlement or labor camps.
The correct option is not given.
Step-by-step explanation:
The men of Reserve Police Battalion 101 were involved in rounding up Jewish people for deportation.
According to historical evidence, such as the statements made during the post-war trials, they used the pretext that the Jews were being sent to resettlement camps, while in reality many were sent to extermination camps in Eastern Europe.
The first extermination camp opened in early 1942, and it marked the beginning of an extensive system of camps where millions of Jews were systematically murdered.
The battalion members may not have always known the specific fate of the Jews they deported, but it is evident that high ranking officials in the SS and Nazi military personnel knew about the systematic murder occurring in these camps.
In summary, while the official line given to those being deported and possibly to those enforcing deportation was resettlement, the leadership and possibly some of the lower ranks were aware that the destinations were actually camps like Sobibor, Treblinka, and Auschwitz where mass executions took place.
The correct option is not given.