What allows users to interact with a program in a graphical environment?

Users interact with a program in a graphical environment through a graphical user interface (GUI), which consists of visual elements such as Windows, icons, buttons, and menus. These elements enable intuitive navigation and control, allowing users to perform tasks using point-and-click actions rather than typing commands. The GUI translates user actions into commands understood by the program, facilitating a more user-friendly experience. Additionally, visual feedback and design enhance usability and accessibility.