8. .     :<br><br>obj = {a: 10, b: "Str"};<br>obj.placeFieldsToStr = function(){<br>   var str;<br>   str += "this.a = " + this.a + "
";<br>   str += "this.b = " + this.b;<br>   return str;<br>}<br>obj.toString = function(){<br>   var str = "
";<br>   str += this.placeFieldsToStr();<br>   return str + "
";<br>}<br>   trace(obj);
A) <br>this.a = 1<br>this.b = Str<br>*0
B) <br>this.a = 10<br>this.b =*0
C) <br>this.a = <br>this.b = Str<br>*0
D)<br>this.a = 10<br>this.b = Str*0
E) <br>this.a = 10<br>this.b = Str<br>*10
