Final answer:
If a victim shows signs of shock and the injuries permit, the appropriate action to take is to keep them warm and elevate their legs. This helps preserve body heat and improve blood circulation.
Step-by-step explanation:
If a victim shows signs of shock and the injuries permit, the appropriate action to take is to keep them warm and elevate their legs (option b). This is because shock is a condition in which there is inadequate blood flow to the organs and tissues, which can be caused by various factors such as severe bleeding or trauma. By keeping the victim warm, it helps to preserve body heat and prevent further complications. Elevating their legs can help promote blood circulation and prevent pooling of blood in the extremities, which can be beneficial in certain cases.