Why are drugs like depressants described as the opposite of amphetamines?
a. depressants can induce feelings of euphoria while stimulants can cause severe pain.
b. depressants can result in death while stimulants cannot.
c. stimulants slow breathing and heart rate while depressants increase those functions.
d. stimulants increase breathing and heart rate while depressants slow these functions.

Amphetamines are drugs which speed up the working of the brain. They are also known as stimulants because they increase feelings of well-being, energy and alertness.  Drugs like depressants are described as the opposite of amphetamines because stimulants increase breathing and heart rate while depressants slow these functions. Correct D Depressants slow normal brain function, which is the opposite of the amphetamines.

d ) power this is the right answer