(iii) These are possible symptoms of dyslexia so I would like to refer him to a specialist for diagnosis.
(i) and (ii) Tim is already showing signs of social anxiety, so extra practice or increasing effort could worsen the anxiety.
(iii) The third option is the best answer because the behaviours could be symptoms of dyslexia. The other options are plausible, but not the best.
(iv) The collection of "symptoms" does not indicate ADHD as much as a learning disability.