Number the stars Why was Annmarie worried when the soldiers questioned her on the train?

In "Number the Stars," Annemarie is worried when the soldiers question her on the train because she fears for her family's safety and the safety of her Jewish friend, Ellen. The soldiers are known for their harsh treatment of Jews, and Annemarie knows that if they recognize Ellen as Jewish, it could lead to dire consequences. She feels a strong sense of responsibility to protect Ellen and is anxious about how to navigate the soldiers' scrutiny without revealing their secret. Her fear highlights the tension and danger of living under Nazi occupation.