In Order to Answer the Given Question, Which of the Following

In order to answer the given question, which of the following types of study would be the most appropriate: an
experiment without blinding, an experiment with single blinding, an experiment with double blinding, an observational
study, or a case-control study?
-Does an hour of meditation per day lower blood pressure?

A) Observational study
B) Experiment with double blinding
C) Experiment with single blinding
D) Experiment without blinding
E) Case-control study