TwoweeksagoinGuangzhou,atwo-year-oldgirl,YueYue,washitbyacarseriouslyandleftlyingontheroadwithnooneofferinghelp,_____aheateddiscussionontheInternet.
A.causedB.to causeC.causingD.being caused在线课程C
解析：
考查非谓语动词。前面提到的事件和cause之间是主谓关系，所以用causing。