Determine whether the given description corresponds to an observational study or an experiment.

In a study of 411 children with a particular disease, the subjects were asked to complete a survey about their diet upon arrival to a hospital.

Does the given description correspond to an observational study or an experiment?

s

O A. The given description corresponds to an observational study


OB. The given description corresponds to an experiment.

O C. The given description does not provide enough information to answer this question