Riddle

What force and strength cannot get through, I with a gentle touch can do. And many in the street would stand, were I not a friend at hand. What am I?

Choose an answer

A.A password
B.A smile
C.A hug
D.I am a Key.
Hint: It's a 4-word phrase with 7 letters, starting with "I".

Answer

I am a Key.

Why this is the answer

This small object opens locked doors easily, without needing brute force.

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