【单项选择题】
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 /> oa[0] = null；  <br /> return o；  <br /> }  <br /> }  <br /> When is the float object created in line 3， eligible for garbage collection？（）  <p> 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 /> oa[0] = null；  <br /> return o；  <br /> } &
A、A. Just after line 5.
B、B. Just after line 6.
C、C. Just after line 7.
D、D. Just after line 8（that is， as the method returns）.
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