Pls help I really need help

What effect do stimulants, such as cocaine, have on the nervous system? o a. stimulants change the activity of neurotransmitters. o b. stimulants mimic hormones and influence moods. o o c. stimulant|mchange how sensory information is processed. d. stimulants decrease brain activity.

Which side of the health triangle corresponds with devloping friendships through communication physical health mental and emotional health social health none of the above

Ab+cd-> ad+bc is what kind of reaction