People do not generally pick up a crack pipe or inject heroin ...

[colton]

People do not generally pick up a crack pipe or inject heroin themselves, but usually learn the behavior by
 
  a. modeling.
  b. classical conditioning.
  c. operant conditioning.
  d. none of these are ways to learn substance-related behaviors.

Question 2

As neurofibrillary tangles occur more frequently and affect multiple areas, the brain's ability to coordinate behavior and communicate with the body
 
  a. increases.
  b. remains consistent.
  c. becomes slightly impaired.
  d. becomes severely impaired.

[kaykay69]

Answer to Question 1

a

Answer to Question 2

d