Which of the Following Statements About Outcome Research Assessing Couples

Which of the following statements about outcome research assessing couples therapy is accurate?

A) Five years after the end of treatment,couples who received integrative behavioral couples therapy have similar relationship satisfaction compared to couples who received the original version of behavioral couples therapy.
B) At the end of therapy the average treated couple functions better in their relationship than about 50 percent of control couples.
C) Integrative behavioral couples therapy and traditional behavioral couples therapy have been shown to be more effective in improving relationship functioning than emotionally focused couples therapy and systems models of therapy.
D) The efficacy and effectiveness of traditional behavioral couples therapy are measurable,whereas outcomes for integrative behavioral couples therapy are not measurable.