{{B}}pAssAgE 2{{/B}}

whiCh oF thE Following stAtEmEnts is truE ABout thE rECEnt stuDy rElEAsED in thEAmEriCAn journAl oF prEvEntivE mEDiCinE A、it is thE First in its kinD、B、it is A hugE projECt CArriED out By A singlE pErson.C、its mAjor purposE is to iDEntiFy thE most importAnt prEvEntivE mEAsurEs.D、it mADE An invEstigAtion into thE govErnmEntAl invEstmEnt in mEDiCAl sErviCEs.