Riddle

I am the only organ that named myself. What am I?

Choose an answer

A.Heart
B.Liver
C.Lung
D.Brain
Hint: It's a word with 5 letters, starting with "B".

Answer

Brain

Why this is the answer

The brain is responsible for thought and language, so it is credited with having invented the very word 'brain' to describe itself.

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