A study recruits a group of college graduates. At the time ofrecruitment partici

A study recruits a group of college graduates. At the time ofrecruitment participants provide a blood sample that isimmediately stored and they complete a questionnaire aboutlifestyle behaviors. The participants are followed over time to seewho develops Parkinsons Disease. Two studies are performed.Classify each study.a) In one study the researchers compare people reporting regularphysical activity to those who are sedentary.Case seriesCase-control studyNested case-control studyProspective cohort studyRetrospective cohort studyRandomized clinical trialCross-sectional studyEcological studyCase cohort study