=+4. Which of the following statements is true of alcohol?

a. Alcohol is a hallucinogen, because it makes people believe things that are not true.

b. Alcohol is a depressant, because it causes people to feel sad when under its influence.

c. Alcohol is a stimulant, because people do foolish things while under its influence.

d. Alcohol is a depressant, because it calms neural activity and slows body function.

e. Alcohol is a stimulant, because it increases the heart rate as consumption increases.