题目内容：
WhichofthefollowingstatementsaboutleadershipcanbeinferredfromParagraph2?
A．Apersonwhoisaneffectiveleaderofaparticulargroupmaynotbealleffectiveleaderinanothergroup． B．Fewpeoplesucceedinsharingaleadershiprolewithanotherperson．
C．ApersonCanbestlearnhowtobeaneffectiveleaderbystudyingresearchonleadership．
D．Mostpeopledesiretobeleadersbutcallproducelittleevidenceoftheirqualifications．
参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：