The following are correct concerning public health intervention strategy, except:

A. intervention at a single level will produce the greater and longer-lasting behavior change compared to intervention at multiple levels

B.Behavioral and psychological interventions should be long-term for optimal outcome

C.individual behavior, family interactions, community and workplace relationships, resources and public policy all contribute to health and influence behavior change

D. intervention should address psychological factors associated with health status such as access to healthy food and safe places to exercise as well as individual behavior.

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