Research on Subtypes of Attention-Deficit/hyperactivity Disorder Indicates That Those with Both

Research on subtypes of attention-deficit/hyperactivity disorder indicates that those with both attentional and hyperactive problems

A) have equivalent outcomes to those with only attentional problems.
B) are more likely to be placed in special education classes than children with only attentional problems.
C) usually learn better than children with only attentional problems.
D) are more likely to have a behavioral,rather than a neurological,basis for their problems.