When the body receives a current of ____ milliamps, death is probable, along with severe burns and cardiac arrest.

The correct response is based on the understanding of electrical injuries and the physiological effects of electrical current on the human body. When the body is exposed to a current of around 10,000 milliamps (or 10 amps), the risk of severe injuries significantly increases. This is primarily because at this level of current, it can cause major disruptions to the heart's rhythm, potentially leading to cardiac arrest. Additionally, exposure to such high levels of current can result in severe burns due to the high heat generated by the electrical flow through tissues.

Current levels beyond this threshold are particularly hazardous and can result in fatal outcomes, highlighting the importance of safety protocols when working with or near electricity. Understanding these thresholds is crucial for ensuring safety in environments where electrical hazards are prevalent.