Which of the Following Is a Strength of Multi-Level Interventions

Which of the following is a strength of multi-level interventions?

A) They are easily evaluated using experimental study designs
B) They are recognized as effective and therefore they are easier to fund than interventions that do not address multiple levels
C) They provide a broad range of options for intervention
D) They are most effective when they target health behaviors in specific and high-risk populations
E) Their specificity facilitates understanding of how constructs interact across the multiple levels