Which of the following best describes utility apps?

Utility apps are best described as applications that are specifically designed to help users accomplish particular tasks or functions. These apps often streamline processes, increase productivity, or make daily tasks easier to manage. For instance, a note-taking app, a weather app, or a calculator app all serve defined purposes, which exemplifies the nature of utility apps being task-focused.

The other options describe different types of apps; for example, apps with complex workflows might not necessarily fit the utility app definition, as they may involve multiple steps or interconnected tasks rather than a single, focused functionality. Apps that entertain primarily aim to provide leisure or enjoyment, diverging from the utility aspect. Lastly, apps that facilitate commerce, while useful, are more aligned with e-commerce or transactional needs rather than the broad definition of utility, which emphasizes doing a specific task efficiently. Thus, the focus on specific tasks is what characterizes utility apps and makes this choice the most accurate.