People with ADHD Have Difficulty with Delayed Reward or Gratification

Multiple Choice

People with ADHD have difficulty with delayed reward or gratification, which could explain their impulsivity and unwillingness to wait patiently for their turn in games, this is most appropriately explained by the:

A) Unsatisfying rewards given
B) Underdeveloped cognitive processes
C) Underdeveloped executive function
D) Disorder at a motivational level
E) Being spoilt by parents