Answer: Option C
Step-by-step explanation:
Stimulant are drugs prescribed by doctor help increase brain activity positively. They are prescribed by doctors to treat Attention-deficit hyperactivity disorder . They help individual to be mentally sound or alert, good vibrant energy and focus.
The level of dopamine and norepinephrine in the brain is increased gradually through the use of stimulant. It mostly use by student so that they can be mentally strong, alert and focused in their studie and largely makes them to be sharper in their books and read for a long time.