Which of the following systems may have an LCD panel that includes multiple parts combined into a single component?

The correct answer, a tablet, is optimal here because tablets typically feature an integrated LCD panel that merges various functions into a single assembly. This includes not only the display itself but also touch sensitivity, which allows for direct interaction with the screen, giving tablets their portable and user-friendly nature. The design of tablets emphasizes compactness and ease of use, facilitating a streamlined experience with no separate components that could add bulk or complexity.

In contrast, other systems like desktops or touch screen laptops may consist of multiple separate components, such as the monitor and other peripherals, which can lead to a more complex setup. All-in-One systems could also incorporate combined features within a single unit, but they can vary significantly in design and may not strictly utilize an LCD panel that integrates additional parts like touch capabilities with the display in the same way that tablets do.