Answer:
Cognitive behavioral therapy techniques include all of the following except: letter C, self-observation.
Explanation:
Cognitive Behavioral Therapy<em><u> is one of the psychotherapy treatments which focuses on the person's problems.</u></em> This is directed to the person's thoughts, feelings and behaviors that negatively affects their life. The most important procedure for this therapy is "self-monitoring" (option A). This allows the patient to know the changes that they will be targeting in order to achieve the intended goal. <u>Thus, this includes changing your thoughts </u><u>(option D).</u>
Cognitive Behavioral Therapy involves <em>Positive and Negative Punishments </em>when it comes to behavioral change. An example of positive punishment is, <u>giving a person a warning letter when going over the school rules,</u> while an example of negative punishment is <u>ignoring a person when that person does something bad to you </u><u>(option D).</u>
This leaves option B as the only technique that Cognitive Behavioral Therapy doesn't use, so this is the answer.