Final answer:
The progression of the Final Solution involved a change in plans over time, with the implementation of systematic murder through extermination camps being formalized at the Wannsee Conference. The Madagascar Plan, which aimed to relocate Jews to Madagascar, was considered but not put into effect.
Step-by-step explanation:
The progression of the Final Solution, from the invasion of the Soviet Union through the Wannsee Conference and Harvest Festival, involved a change in plans over time. Initially, the Nazis used mobile killing units to execute mass shootings of Jews in Eastern Europe. However, in 1941, the decision was made to implement systematic murder through extermination camps. The Wannsee Conference in 1942 formalized this policy. The Madagascar Plan, which aimed to relocate Jews to the African island of Madagascar, was considered but not put into effect. If it had been implemented, it likely would have faced logistical challenges and resulted in immense suffering for the Jewish population.