The CIA investigated hypnosis as a possible tool for interrogating prisoners. Why did they decide it was unsuitable for that purpose? A. Hypnosis is completely effective, it just takes too long to entrance the subject. B. Hypnosis requires a trusting relationship between the hypnotist and subject. C. Hypnosis breaks the spirit of the subject, making them unable to answer questions. D. Hypnosis can make the subjects talk, but they talk only about their childhoods. Please select the best answer from the choices provided A B C D.