Top Law Schools

PT 51.5 (AKA June 07), LR 2, #13:

Question about cognitive psychotherapy..

I can't distinguish between B and D.
Will some genius please explain/diagram?

The therapist is arguing that a form of therapy that focuses on conscious beliefs (CB) is more likely to be successful than one focusing on unconscious ones (UB).

B and D are similar, but one is better than the other.

B says it is difficult for a therapy to work without focusing on CB.

D says a therapy focusing on UB cannot be effective if it does not address CB.

Clearly D is a stronger statement. B only means it is difficult for a therapy that focuses on UB to work, D means it is impossible.

Also,
the stimulus has one premise and a 'since premise2, thus conclusion' phrase, made more obtuse as 'thus...., since...'.
there is a logic gap between the second premise and the conclusion, (B) provides another premise to fill this gap.

Thanks for your explanations.

Is this question diagrammable? Thanks =)