Final answer:
The people on the train physically restrain Mrs. Schacter to stop her yelling, as mentioned in Elie Wiesel's memoir, 'Night'.
Step-by-step explanation:
This question references a scene from Elie Wiesel's memoir, Night. As Mrs. Schacter's screams provoke fright and unrest among the people in the train carriage, they resort to harsh measures to silence her. The correct answer is (b) They physically restrain her. In the text, it mentions that the people on the train actually beat Mrs. Schacter into silence. It's a troubling moment that illustrates how fear and desperation can lead people to act cruelly.
Learn more about Night by Elie Wiesel