Narinder is in constant motion. Sitting still through a lesson is impossible for him. He  fidgets, squirms, climbs and runs around the room aimlessly. Parents and teachers describe him as ‘driven by a motor’, always on the go, and talk incessantly. Narinder is suffering from which disorder?

ADHD

The correct answer is option 4: ADHD

Narinder's symptoms — constant motion, inability to sit still, fidgeting, running around aimlessly, being described as "driven by a motor," and talking excessively — are classic signs of Attention-Deficit/Hyperactivity Disorder (ADHD)

Children with ADHD are in constant motion. Sitting still through a lesson is impossible for them. The child may fidget, squirm, climb and run around the room aimlessly. Parents and teachers describe them as ‘driven by a motor’, always on the go, and talk incessantly.