I think it has had a positive effect.
Hope this helps.
I would say b., mostly because it is good to have them know why they need to act in such a manner not just the "style" of which the behavior is being done. Sometimes it is difficult for them to refine their behaviors, but it can produce progress
D or a. The others shouldnt be correct
Personally, I think that therapy gets very personal at times, some people would rather see a recovery without having to open up about their issues with a person who they likely do not know. They might either have a hard time opening up, feel uncomfortable, some people don’t even believe in therapy! There’s that one saying “What good will talking do?” some people really have that mentality! So they deal with their issues with meds.