Mina travelled to England to undergo a procedure that she was told could cure her of her depression. She was informed by the surgeon that it would involve the drilling of a hole in her skull to help relieve pressure on a certain area of her brain, thus reducing her symptoms of depression. The procedure that Mina would undergo is called ______.
◦ lobotomy.
◦ exorcism.
◦ trephining.
◦ humor extraction.