Holden doesn't feel bad about leaving the school because school wasn't important to him. ... Holden visited Mr. Spencer because he was a teacher that he liked. He regrets visiting Mr. Spencer because he hated being pointed at for example when Mr. Spencer read his paper in front of Holden
A is the best answer, a visual aid would help most in this situation.
Some people that are diagnosed with ADHD or ADD do not take the recommended course of treatment, and therefore might be requested not to be in the military. However, if someone diagnosed with ADHD or ADD takes the recommended course of treatment, and this doesn't impair their work in a significant way as measured by military staff, then it should be fine for them to work in a military setting.
Why do you ask?