What type of component is required for the function of imaging systems?

The correct response highlights the importance of radiosensitive components in imaging systems. Radiosensitive components are crucial because they are designed to interact with radiation (such as X-rays) in a way that produces an image when exposed. These components, typically found in film or digital sensors, are specifically engineered to respond to the radiation dose, capturing the necessary contrast to reveal underlying structures in the imaging process.

In contrast, non-reactive elements would not contribute to the imaging function since they do not respond to radiation. Similarly, resistant layers and opaque screens do not serve the purpose of capturing or creating images; instead, they might protect the sensitive components or prevent unwanted radiation exposure, but they do not fulfill the primary imaging function. Thus, radiosensitive components are essential for the functionality of imaging systems, as they ensure the effective conversion of radiation into a visible image.