What do external change groups seek to change?

What do external change groups seek to change?
 
  a. External change groups seek to change the perceptions of the members in it
  b. External change groups seek to change the political views of those people
  who are involved in group members' lives in some capacity
  c. External change groups seek to change the behaviors of those within the
  group who have some influence and impact on their own lives
  d. External change groups seek to change the behaviors of those outside of the
  group who have some influence and impact on group members or their
  constituents