The correct answer is: C. Timer
An access key is a keyboard shortcut that allows users to access a control or element on a web page without using a mouse. Access keys are typically assigned to letters on the keyboard, and are indicated by an ampersand (&) followed by the letter. For example, the access key for a button might be Alt+A.
It is inappropriate to assign access keys to timers because timers are not interactive elements. Users cannot interact with timers in the same way that they can interact with other elements on a web page, such as text boxes, buttons, and links. Therefore, there is no need to assign access keys to timers.
Here is a brief explanation of each option:
- Text boxes are interactive elements that allow users to enter text. Access keys can be assigned to text boxes to allow users to select them without using a mouse.
- Label controls are non-interactive elements that provide information about other elements on a web page. Access keys can be assigned to label controls to allow users to jump to the associated element without using a mouse.
- Buttons are interactive elements that allow users to perform actions. Access keys can be assigned to buttons to allow users to click on them without using a mouse.
- Timers are non-interactive elements that track the passage of time. Access keys cannot be assigned to timers because they are not interactive elements.