Riddle

In many hallways you would stand, if not with this in hand.

Choose an answer

A.Doorknob
B.Umbrella
C.Flashlight
D.Key
Hint: It's a word with 3 letters, starting with "K".

Answer

Key

Why this is the answer

Without your key in hand, you would be stuck standing in the hallway, locked out.

This riddle is filed under Hard/Difficult Riddles and rated Medium.