Read the excerpt from Rena's Promise: Two Sisters in Auschwitz. "I have a favor to ask of you, Andrzej. . . This is very difficult for me, but I must ask. It is no longer safe in Tylicz for Rena. Her mother and I are worried for her safety every day. " "I heard what happened last night, Mr. Kornreich. I understand your concern. " "I have no money to pay you for this favor. " "Sir, I would not take any money from you. She is my friend since childhood. I will do whatever you ask to help your daughter. " "Thank you. " Papa paused, stroking his chin where his beard should have been. "You seem like a man of your word. If you would bring Rena across the border to Slovakia, her mother and I might find sleep at night. " Which sentence best summarizes the excerpt?.