Riddle

You need a key to receive an answer from me. The answer you'll find is straight from your mind. What is it?

Choose an answer

A.A password
B.A cipher
C.A lock
D.A code
Hint: It's a 2-word phrase with 5 letters, starting with "A".

Answer

A code

Why this is the answer

A code is unlocked with a key, and once decoded it reveals a message straight from the mind of whoever wrote it.

This riddle is filed under "What Am I?" Riddles and rated Hard.