can someone please help me with these psychology questions and give me the correct answers. this is due Wednesday, February 28.

question 5. True of False: In the world of mental health, ADHD is a relatively new, modern disorder.

question 6. A diagnosis of ADHD requires that symptoms are observed in multiple environments and that they appear significantly before the age of... A. 12. B. 7. C. 18. D. 3.

question 7. Xanax works by helping increase the availability of which neurotransmitter in the brain? A. Dopamine. B. Glutamate. C. GABA. D. Serotonin.