Read the excerpt from Rena's Promise: Two Sisters in Auschwitz.

"Rena's Promise: Two Sisters in Auschwitz" is a book authored by Rena Kornreich Gelissen. Based on the excerpt provided from this text, I believe that the most accurate summary is option C: <span> Rena’s father requests Andrzej to ensure her safety in Slovakia, and he consents to do this. Hope this is helpful.</span>

Answer: C) Rena’s father requests Andrzej to ensure her safety in Slovakia, and he consents to do this.

Explanation: The mentioned excerpt from Rena's Promise: Two Sisters in Auschwitz illustrates that Rena's father is worried about her well-being in Tylicz and implores Andrzej to transport her to Slovakia for her safety. Andrzej agrees as he has been Rena's friend since childhood, making option C the best summarization of the excerpt.