Which of the following best represents protective measures against radiation?

The choice that best represents protective measures against radiation is the use of lead shields and minimizing exposure time. This answer is grounded in the fundamental principles of radiation protection, which emphasize reducing the amount and duration of exposure to radiation sources.

Lead shields are effective because lead is a dense material that can absorb and block ionizing radiation, such as gamma rays and X-rays. By employing lead shielding in environments where radiation exposure may occur, workers and individuals are significantly protected from potential harm. Additionally, minimizing the time spent near radiation sources decreases the overall dose of radiation received, thereby enhancing safety.

In contrast, options such as wearing sunglasses do not address radiation in the context of nuclear or ionizing radiation hazards, as sunglasses primarily protect against sunlight and visible light. Eradicating all forms of energy is impractical and not relevant to the specific dangers posed by radiation exposure. Similarly, staying indoors during daylight hours does not necessarily protect against radiation from other sources, such as radioactive materials or certain industrial processes, and does not utilize any established protective measures. Therefore, the second option aligns directly with established practices in radiation safety and protection.