public class X { <br /> public object m () {  <br /> object o = new float (3.14F);  <br /> object oa = new object [1];  <br /> oa[0]= o;  <br /> o = null;  <br /> return oa[0];  <br /> }  <br /> }  <br /> When is the float object created in line 3, eligible for garbage collection?()
A、 Just after line 5
B、 Just after line 6
C、 Just after line 7 (that is, as the method returns)
D、 Never in this method.