Final answer:
The chapter most likely about the last part of Anna Maria's time at Auschwitz is 'Beginning the Death March,' reflecting the forced evacuations as Soviet forces approached.
Step-by-step explanation:
The most likely chapter concerning the last part of Anna Maria's time at Auschwitz, given the context of the information provided and historical events, is "Beginning the Death March" (option d). As the Soviet army advanced, the SS began evacuating concentration camps like Auschwitz in January 1945, where they forced prisoners on marches away from the camps. These were later known as death marches because they were incredibly harsh and many prisoners did not survive the journey. Mengele's experiments, the hardships endured by inmates, and the eventual evacuation of Auschwitz would be critical elements of her memoirs during that troubling period.