Answer:
Evidence-based research.
Explanation:
American heart association may be defined as the non profit organization that mainly funds on the cardiovascular medical research. The main aim is to reduce the heart disease among the population.
This association mainly work on publishing the guidelines and on the causes, prevention and disease on the cardiovascular disability. The researches done on this association is the evidence based research and requires proof for its publishment.
Thus, the correct answer is option (B).
