在JavaScript中,下面代码输出的结果是()。
A.3B.4C.2D.1
A.VarcharB.NumberC.StringD.Undefined
A.var showFun =function show(text){alert(text);}B.var showFun =function(text){alert(text);}C.function show(text){alert(text);}D.var showFun =new function("text","alert(text)"};