What does a focused <canvas> element enable users to do?

The focused element enables users to interact with the content using keyboard inputs. When an element has focus, it can receive keyboard events, allowing users to perform actions like drawing or manipulating objects within the canvas using their keyboard. This is especially vital for accessibility, as keyboard navigation is crucial for individuals who may have difficulties using a mouse or other pointing devices.

While it is true that users can draw directly on the element, that action typically requires using a mouse or stylus, rather than keyboard inputs. Additionally, modifying the size of the canvas pertains to the attributes of the element in the HTML and does not correlate with user interaction through focused states. Hence, the option regarding keyboard interaction accurately reflects the capability of a focused element in enhancing accessibility and usability for all users.