Use reasoning to lead to the answer of the following question:
His friends leg began to shake with nerves, he reached out and grasped it so it would what?\nOptions:\n- rattle\n- be still\n- nod\n- steady\n- stay still
 Reasoning process:
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If something shakes, we grasp it so that it stays still. If leg shakes with nerves, grasping the leg would help to make it stay still. Therefore, the final answer is stay still.
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