Question: ……….. is the key to close a selected drop -down list; cancel a command and close a dialog box

Answer:

The key to close a selected drop-down list, cancel a command, and close a dialog box can vary depending on the operating system and software being used. However, the commonly used key for these purposes is the "Escape" key, often abbreviated as "Esc" on keyboards.

Pressing the Escape key allows users to cancel or dismiss a current operation, close a dialog box, or exit a drop-down menu without making any selection. It is a widely recognized key for aborting or canceling actions in various software applications and user interfaces.

Please note that while the Escape key is commonly used for these purposes, there might be specific software or applications that use different keys or key combinations for similar actions. It is always advisable to refer to the documentation or help resources of the specific software or operating system you are using to determine the appropriate key or method for canceling or closing specific elements or commands.