Most popular self-help books, like the kind sold in mall ...

[maychende]

Most popular self-help books, like the kind sold in mall bookstores:
 
  a. are never evaluated to see if they actually help people.
  b. do help people, but in unexpected ways.
  c. definitely do not help people.
  d. help some people, but do not help others.

Question 2

In general, people who have a relatively serious problem with their behavior:
 
  a. are unable to change without professional help.
  b. assume that they cannot change without professional help.
  c. often do change without professional help.
  d. change only if they receive social support.

[Joy Chen]

Answer to Question 1

A.

Answer to Question 2

C.