Answer:
( A). Stimulants is a correct answer.
Step-by-step explanation:
Stimulants result in the overactive movement of eye.
Stimulants belong to the class psychoactive drugs which cause increase brain function.
Stimulants results in the change of the corneal curvature, and it increases the alertness and energy for a limited period of time.
Ritalin is a class of stimulants known as Methylphenidate and other stimulants like nicotine, cocaine result in overactive movement of the eye.
In this condition, people are not able to concentrate on multiple visual works at the same time.