Vennig,Kettler,Eliot,and Wilson (2009)found Preliminary Evidence for the Effectiveness of Increasing

Vennig,Kettler,Eliot,and Wilson (2009) found preliminary evidence for the effectiveness of increasing hopefulness to prevent the onset of depression.Their findings demonstrated that

A) therapies that included several hopeful elements were more effective at preventing depression than therapies that did not include hopeful elements
B) therapies that included several hopeful elements were less effective at preventing depression than therapies that did not include hopeful elements
C) therapies that included minimal hopeful elements were more effective at preventing depression than therapies that did not include hopeful elements
D) therapies that included several hopeful elements were just as effective at preventing depression as therapies that did not include hopeful elements