Which component of an operating system allows the operating system to run applications?

The file manager is responsible for managing files on the disk, including operations like creating, deleting, and organizing files. While it plays a crucial role in file handling, it does not directly enable the execution of applications or manage system resources, which is the primary function of the kernel.

Drivers are specialized programs that allow the operating system to communicate with hardware devices. While they are essential for the functioning of hardware components, they do not manage the execution of applications themselves. Instead, drivers work alongside the kernel to enable hardware functionality.

The user interface provides the means for users to interact with the operating system and applications, either through graphical elements or command line. Although it enhances user experience, it does not handle the execution of applications; that task is managed by the kernel.