The Parent of a Child Diagnosed with ADHD Tells the Primary

The parent of a child diagnosed with ADHD tells the primary care pediatric
nurse practitioner that the child gets overwhelmed by homework assignments, doesn't seem to know which ones to do first, and then doesn't do any assignments. The nurse practitioner tells the parent that this represents impairment in which executive function?

A) Activation
B) Effort
C) Emotion
D) Focus