A Parent Expressed Concern That His or Her Adolescent Son

A parent expressed concern that his or her adolescent son is up late at night, is listless, and frequently uses eye drops for his bloodshot eyes. Which statement should the nurse include in the discussion with the parent?

A) "He might be depressed; insomnia is common with depression."
B) "He could be smoking marijuana."
C) "Sounds like he is using cocaine."
D) "Your son could be studying too hard."