When is a door no longer a door?

Here is the question :

WHEN IS A DOOR NO LONGER A DOOR?

Here is the option for the question :

• When it’s ajar
• When it’s a window
• When it’s a-door-able
• When it’s dormant

The Answer:

And, the answer for the the question is :

Explanation:

[STC0012033]. A door that is ajar is not a door. The word “ajar,” which meaning “slightly open,” is the punchline. To leave a door ajar is to leave it open slightly.